Journals 1) Garhwal, A., Ahmad, M.R., Ahmad, B.H., (...), Ray, K., Bandyopadhyay, A., “Circular and elliptical shaped fractal patch antennas for multiple applications”, International Journal of Engineering and Advanced Technology 8(5), pp. 114-120, 2019.
2) Toshniwal, S.K., Prajapati, A., Ray, K., (...), Singh, P., Bandyopadhyay, A., “A compact UWB antenna design using modified ground plane”, International Journal of Innovative Technology and Exploring Engineering 8(10), pp. 615-618, 2019.
3) Vijay, S.K., Jain, S., Ahmad, M.R., (...), Ray, K., Bandyopadhyay, A., “UWB antenna with dual band notch characteristics”, International Journal of Engineering and Advanced Technology 8(5), pp. 61-65, 2019.
4) Garhwal, A., Ahmad, M.R., Ahmad, B., (...), Ray, K., Bandyopadhyay, A., “Mechanically reconfigurable hexagonal fractal patch antenna for ambient computing”, International Journal of Innovative Technology and Exploring Engineering, 8(6), pp. 1478-1484, 2019.
5) N Hassan, Z Zakaria, BH Ahmad, NC Pee, SN Salleh, MZAA Aziz, “Number of Iteration Analysis for Complex FSS Shape Using GA for Efficient ESG”, Bulletin of Electrical Engineering and Informatics, 7 (4), 505-513, 2018.
6) HA Bakar, MZAA Aziz, BH Ahmad, N Hassan, HA Sulaiman, “Miniaturization of Broadband Right-Handed Circular Polarized (RHCP) Antenna Using 8 x 8 Square Loop Metasurfaces (MS)”, Journal of Telecommunication, Electronic and Computer Engineering (JTEC), Volume 10, Issue 2-8, Pages 151-154, 2018.
7) FA Hussin, BH Ahmad, M Aziz, MK Suaidi, “Design and Analysis of Frequency Selective Surface (FSS) Using Complementary Techniques on Glass”, Journal of Telecommunication, Electronic and Computer Engineering (JTEC) Volume 10, Issue 2-8, Pages 145-150, 2018.
8) NA Shairi, AM Zobilah, Z Zakaria, BH Ahmad, MK Zahari, FAM Ramli, “An Overview of Filter Integrated Switch (FIS) for RF and Microwave Applications”, Journal of Telecommunication, Electronic and Computer Engineering (JTEC), Volume 10, Issue 2-6, Pages, 111-118, 2018.
9) MH Al-Taweel, BH Ahmad, MR Ahmad, TR Al-Shaikhli, MM Al-Saeedi, “Design of Multi-Band Matched Bandstop Filter”, Journal of Advanced Research in Dynamical and Control Systems (JARDCS), Issue: 07-Special Issue Year: 2018, Pages: 707-711, 2018.
10) MZAA Aziz, FA Hussin, BH Ahmad, MK Suaidi, NAM Fauzi, “Design and Impedance Modeling of Complementary Circular Loop FSS at 2.4 GHz” Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 9, pp. 115-118, 2017.
11) MK Zahari, BH Ahmad, WP Wen, NA Shairi, MA Mutalib, N Hassan, “An Investigation of Switchable Matched Bandstop to Bandpass Filter Based on Lossy Resonator”, Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 9, pp. 119-123, 2017.
12) Nayan, N., Lim, H.S., Ahmad, M.K., (...), Johar, F.M., Kiani, G., “Sputter deposited tin oxide thin film properties and their application for radio wave propagation”, ARPN Journal of Engineering and Applied Sciences, 11 (8), pp. 4942-4948, 2016.
13) Shairi, N.A., Zakaria, Z., Zobilah, A.M.S., Ahmad, B.H., Wong, P.W., “Design of SPDT switch with transmission line stub resonator for WiMAX and LTE in 3.5 GHz band”, ARPN Journal of Engineering and Applied Sciences, 11 (5), pp. 3198-3202 Open Access, 2016.
14) Zahari, M.K., Ahmad, B.H., Wong, P.W., Shairi, N.A., “Comparative study of switchable filters and a new technique of bandstop to bandpass filter using lossy resonators”, ARPN Journal of Engineering and Applied Sciences, 11 (6), pp. 3896-3903, 2016.
15) Hussin, F.A., Ahmad, B.H., Abd Aziz, M.Z.A., Suaidi, M.K., “Modified printed dipole with reflector and director”, Jurnal Teknologi 78 (6-4), pp. 137-140, 2016.
16) Sadick, N.S.A., Abd Aziz, A.M.Z.A., Ahmad, B.H., Othman, M.A., Sulaiman, H.A., “Analysis of tapered finline in power combiner for wideband application”, Jurnal Teknologi 78 (6-7), pp. 121-125, 2016.
17) Hassan, N., Abd. Aziz, M.Z.A., Noor Azizi, M.S., (...), Ahmad, B.H., Sulaiman, M.H. “Effect of quadruple P-spiral split ring resonator (QPS-SRR) structure on microstrip patch antenna design”, Jurnal Teknologi 78 (5-5), pp. 119-123, 2016.
18) Bakar, H.A., Abd. Aziz, M.Z.A., Ahmad, B.H., (...), Sulaiman, H.A., Othman, M.A. “Design of linear and circular polarized antenna for WLAN application”, Jurnal Teknologi 78 (6-5), pp. 129-137, 2016.
19) Amat, N.F., Othman, M.A., Ahmad, B.H., Rajan, J., “Solar cloth using TiO2 nanostructures based dye sensitized solar cell technique”, ARPN Journal of Engineering and Applied Sciences 10 (2), pp. 709-713, 2015.
20) Ong, T.K., Ahmad, B.H., Aziz, M.Z.A.A., (...), Sulaiman, H.A., Malek, F.A., “Investigation of SRR parameters on monopole antenna performance”, ARPN Journal of Engineering and Applied Sciences 10 (2), pp. 683-685, 2015.
21) Md Fauzi, N.A., Abd Aziz, M.Z.A., Said, M.A.M., (...), Suaidi, M.K., Abd Malek, M.F., “Investigation on the impedance modeling of combination circle for frequency selective surface (FSS)”, ARPN Journal of Engineering and Applied Sciences, 10 (2), pp. 678-682, 2015.
22) Phoo, K.S., Abd. Aziz, M.Z.A., Ahmad, B.H., (...), Sualiman, H.A., Abd. Malek, F., “Parametric study of broadband inverted suspended linear polarized antenna”, ARPN Journal of Engineering and Applied Sciences 10 (3), pp. 1374-1377, 2015.
23) Ahmad, B.H., Mazlan, M.H., Husain, M.N., Zakaria, Z., Shairi, N.A, “Microstrip filter design techniques: An overview”, ARPN Journal of Engineering and Applied Sciences, 10 (2), pp. 901-907, 2015.
24)Johar, F.M., Azmin, F.A., Shibghatullah, A.S., (...), Bin, L.V., Yang, W.W., “Application of genetic algorithm for the optimization of energy saving glass coating structure design”, Advanced Science Letters, 20 (10-12), pp. 1905-1909, 2014.
25)Johar, F.M., Salleh, S.N., Azmin, F.A., (...), Ahmad, B.H., Shibghatullah, A.S., “Comparison of CST and customize program in theoretical for scattering transmission parameter for energy saving glass (ESG) application”, Advanced Science Letters, 20 (10-12), pp. 2064-2068, 2014.
26) Ong, T.K., Ahmad, B.H., Aziz, M.Z.A.A., Malek, M.F.A., "Design of wideband monopole antenna with co-planar waveguide feeding technique”, Advanced Science Letters, 20 (10-12), pp. 1873-1875, 2014.
27) Md. Shukor, M., Abd. Aziz, M.Z.A., Ahmad, B.H., Suaidi, M.K., Othman, M.A., “Design of dual band antenna for WLAN application”, Jurnal Teknologi (Sciences and Engineering), 2014.
28) Abdul Hadi, M.H., Ahmad, B.H., Wong, P.W., Shairi, N.A. “An overview of isolation improvement techniques in RF switch”, ARPN Journal of Engineering and Applied Sciences, 2014, 9 (3), pp. 342-348
29) Nornikman, H., Malek, F., Mohd Fakri, M.H.F., Abd Aziz, M.Z.A., Ahmad, B.H., “Minkowski fractal antenna design with DMS-SRR and DGS-SRR structure for WLAN application”, Progress in Electromagnetics Research Symposium, 2014, pp. 2391-2394.
30) Nornikman Hassan, Sam Weng Yik, Mohd Fareq Abd Malek, Mohamad Zoinol Abidin Abd Aziz, Badrul Hisham Ahmad, Mohd Azlishah Othman, “Design Compact Monopole Antenna with Modified Trapezoidal Shaped Ground Plane for 8.5 GHz Application”, Journal of Advances in Environmental Biology (AEB), 2013.
31) Nornikman Hassan, Ong Teik Kean, Badrul Hisham Ahmad, Mohamad Zoinol Abidin Abd Aziz, Sam Weng Yik, Mohd Azlishah Othman, “Design Coplanar Waveguide-fed Circular Patch Antenna with Edge Couple Split Ring Resonator Structure for Dual-band Application”, Journal of Advances in Environmental Biology (AEB), 2013.
32) M. Md. Shukor, M.Z.A. Abd. Aziz, H. Nornikman, B. H. Ahmad, M.K. Suaidi, M. F. Johar, M. A. Othman, S. N. Salleh, F.A. Azmin, M. F. Abd. Malek, “Investigation of a Double Slot FSS for Dual Band Applications on Hybrid Material”, Journal of Advances in Environmental Biology (AEB), 2013.
33) M. Md. Shukor, M.Z.A. Abd. Aziz, H. Nornikman, B. H. Ahmad, M.K. Suaidi, F. M. Johar, M. A. Othman, S.N.Salleh, F.A. Azmin, F. Malek, Investigation of A Square Loop FSS on Hybrid Material, Journal of Advances in Environmental Biology (AEB), 2013.
34) Nornikman Hassan, Badrul Hisham Ahmad, Mohamad Zoinol Abidin Abd Aziz, Zahriladha Zakaria, Mohd Azlishah Othman, Abdul Rani Othman, Mariana Yusoff, Kamaruzaman Jusoff, “Rice Husk Truncated Pyramidal Microwave Absorber using Quadruple P-Spiral Split Ring Resonator (QPS-SRR)”, Australian Journal of Basic and Applied Sciences (AJBAS), vol. 7, issue 3, pp. 56 – 63, 2013.
35) M. M. Saad, M. N. Husain, H. Nornikman, M. Z. A Abd Aziz, B. H. Ahmad, F. Malek, “Design A Quadband Frequencies Microstrip Patch Antenna with Double C-Shaped Slot”, International Journal of Engineering and Technology (IJET), vol. 5, no. 2, 2013.
36) L. Zahid, F. Malek, H. Nornikman, N. A. Mohd Affendi, A. A. Ali, B. H. Ahmad, M. Z. A. Abd Aziz, “Development of a Pyramidal Microwave Absorber using Sugar Cane Baggase (SCB)”, Progress in Electromagnetics Research (PIER), vol. 137, pp. 687 – 702, 2013.
37) H. Nornikman, B. H. Ahmad, M. Z. A. Abd Aziz, A. R. Othman, “Rhombic Split Ring Resonator (R-SRR) Structure on Rectangular Patch Antenna Design” International Journal of Electronics and Computer Science Engineering (IJECSE), vol. 2, no. 1, pp. 322-330, 2013.
38) N. A. Shairi, B. H. Ahmad, and W. P. Wen, “Bandstop to Allpass Reconfigurable Filter Technique in Spdt Switch Design” Progress In Electromagnetics Research C, Vol. 39, 265-277, 2013.
39)M. M. Saad, M. N. Husain, H. Nornikman, M. Z. A Abd Aziz, B. H. Ahmad, F. Malek, “Design A Quadband Frequencies Microstrip Patch Antenna with Double CShaped Slot” International Journal of Engineering and Technology, IJET Vol. 5, No. 2, 2013.
40) Mohd Azlishah Othman, Siti Rohmah Mohamed Kamaruddin, Kamaruzaman Jusoff, Mohamad, Zoinol Abidin Abd. Rashid, Mohd Muzafar Ismail, Hamzah Asyrani Sulaiman, Mohd Harris Misran, Ridza Azri Ramli, Maizatul Alice Meor Said, Badrul Hisham Ahmad, Zahriladha Zakaria, Mohan Sinnappa, Mariana Yusoff and Shadia Suhaimi, “Ultra-Wide Band (UWB) Ice Cream Cone Antenna for Communication System” Australian Journal of Basic and Applied Sciences, 7(3): 10-17, 2013.
41) Zahriladha Zakaria, Sam Weng Yik, Mohamad, Zoinol Abidin Abd. Rashid, Kamaruzaman Jusoff, Mohd Azlishah Othman, Badrul Hisham Ahmad, Mohamad Ariffin Mutalib and Shadia Suhaimi, “Hybrid Topology of Substrate Integrated Waveguide (SIW) Filter and Microstrip Patch Antenna for Wireless Communication System” Australian Journal of Basic and Applied Sciences, 7(3): 24-34, 2013
42) Nornikman Hassan, Badrul Hisham Ahmad, Mohamad, Zoinol Abidin Abd. Rashid, Zahriladha Zakaria, Abdul Rani Othman, Mariana Yusoff and Kamaruzaman Jusoff, “Rice Husk Truncated Pyramidal Microwave Absorber using Quadruple P-Spiral Split Ring Resonator (QPS-SRR)” Australian Journal of Basic and Applied Sciences, 7(3): 56-63, 2013.
43) B. H. Ahmad, Siti Sabariah Sabri and A. R. Othman, “Design of a Compact X-Band Substrate Integrated Waveguide Directional Coupler” International Journal of Engineering and Technology, IJET Vol. 5, No. 2, 2013.
44) Nornikman Hassan, Badrul Hisham Ahmad, Mohamad, Zoinol Abidin Abd. Rashid, Zahriladha Zakaria, Mohd Azlishah Othman, Abdul Rani Othman, Kamaruzaman Jusoff, Zanariah Jano, “Microstrip Patch Antenna with a Complementary Unit of Rhombic Split Ring Resonator (R-SRR) Structure” World Applied Sciences Journal 21(Special Issue of Engineering and Technology): 31-40, 2013
45) Zahriladha Zakaria, Mohamad Ariffin Mutalib, Kamaruzaman Jusoff, Mohd Sa’ari Mohamad Isa, Mohd Azlishah Othman, Badrul Hisham Ahmad, Mohamad, Zoinol Abidin Abd. Rashid, Shadia Suhaimi, “Current Developments of Microwave Filters for Wideband Applications” World Applied Sciences Journal 21(Special Issue of Engineering and Technology): 31-40, 2013
46) B. H. Ahmad, M. M. Ariffin, H. Nornikman, N. M. S. Roslan, M. Z. A. Abd Aziz, M. A. Atiqa, A. R. Ayuni,Y. W. Ming, Y. P. Yin, “Parametric Study on the Compact G-Shaped Monopole Antenna for 2.4 GHz and 5.2 GHz Application” International Journal of Engineering and Technology, IJET Vol. 5, No. 1, 2013.
47) N. A. Shairi, B. H. Ahmad and Peng Wen Wong, “Switchable Radial Stub Resonator for Isolation Improvement of SPDT Switch” International Journal of Engineering and Technology, IJET Vol. 5, No. 1, 2013.
48) B. H. Ahmad and K. N. Minhad, “A Review on Reconfigurable Low Pass Bandstop Filter Based on Technology, Method and Design” International Journal of Electronics and Computer Science Engineering, IJECSE Vol. 2, No. 1, 2012.
49) B. H. Ahmad, M. K. Zahari, Peng Wen Wong, “Design and Comparison of Reconfigurable Perfectly-Matched Bandstop Filters” International Journal of Electronics and Computer Science Engineering, IJECSE Vol. 2, No. 1, 2012.
50) H. Nornikman, B. H. Ahmad, M. Z. A. Abd Aziz and A. R. Othman, “Rhombic Split Ring Resonator (R-SRR) Structure on Rectangular Patch Antenna Design” International Journal of Electronics and Computer Science Engineering, IJECSE Vol. 2, No. 1, 2012.
51) N. A. Shairi, B. H. Ahmad, Z. Zakaria and Peng Wen Wong, “Design And Analysis Of Isolation Improvement and Compact Size Of SPDT Switch with Switchable Open Stub Resonator for Wireless Communication” International Journal of Electronics and Computer Science Engineering, IJECSE Vol. 2, No. 1, 2012.
52) H. Nornikman, B. H. Ahmad, M. Z. A. Abdul Aziz, M. F. b. A. Malek, H. Imran, and A. R. Othman, “Study and Simulation of an Edge Couple Split Ring Resonator (EC-SRR) on Truncated Pyramidal Microwave Absorber” Journal of Progress in Electromagnetic Research, PIER Vol. 127, 2012.
53) A. Badrul Hisham, M. N. Husain, K. S. Tan, “A Novel Hybrid (HN) Substrate Integrated Waveguide (SIW) Bandstop Filter”, Journal of Telecommunication, Electronic and Computer Engineering, Vol. 2 No. 2 July – December 2010.
54) Mazran E., Redzuan A. M., Badrul H. A., Adie M. K. and Amat A. B., “Security System Using Controller Area Network (CAN) Bus”, Journal of Telecommunication Electronics and Computer Engineering, 2009.
55) Redzuan Abdul Manap, Mazran Esro, Amat Amir Basari and Badrul Hisham Ahmad, “An analysis on the Performance of Fast Block Matching Motion Estimation Algorithms”, Journal of Telecommunication Elektronics and Computer Engineering, 2009.
Proceedings 1) Nornikman, H., Ahmad, B.H., Esa, M.R.M., (...), Zakaria, Z., Siang, C.S., “Dual Circular-Polarized Slot Antenna Design for Wireless MIMO System at 2.4 GHz”, Proceedings of 2018 International Conference on Electrical Engineering and Computer Science, ICECOS 2018, 8605228, pp. 19-24, 2019 2) MK Zahari, NA Shairi, BH Ahmad, Z Zakaria, PW Wong, “Miniaturized Switchable Bandpass to Matched Bandstop Filter Using Stepped-Impedance Resonator”, 2018 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM), Pages 1-2. 3) HA Bakar, MZAA Aziz, BH Ahmad, N Hassan, “Investigation of Circular Patch Metasurface (MS) on Inverted Suspended Circular Polarized Antenna, Journal of Physics: Conference Series 1049 (1), 012083 4) M. K. Zahari ; B. H. Ahmad ; Wong Peng Wen ; N. A. Shairi, “Switchable absorptive bandstop to bandpass filter using dual-mode ring resonator”, 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), Pages: 248 - 251, DOI:10.1109/ APACE.2016.7916435. 5) Farhana Abu Hussin; Badrul Hisham Ahmad; Mohamad Zoinol Abidin Abd Aziz; Mohamad Kadim Suaidi, “Design and impedance modeling for dual band and multiple band frequency selective surface (FSS)” 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), Pages: 94 - 99, DOI: 10.1109/APACE.2016.7916483. 6) Ahmad, B.H., Nornikman, H., Aziz, M.Z.A.A., “Microstrip patch antenna with 12-N modified double W-shaped split ring resonator (MDW-SRR) structure”, RFM 2015 - 2015 IEEE International RF and Microwave Conference , 7587731, pp. 141-146, 2016. 7) Ahmad, B.H., Nornikman, H., “Parametric study on microstrip bow-Tie patch antenna with complementary split ring resonator”, Asia-Pacific Microwave Conference Proceedings, APMC2015, 7413408. 8) Ahmad, B.H., Nornikman, H., “Dual band printed folded dipole antenna for wireless communication at 2.4 GHz and 3.5 GHz applications”, Asia-Pacific Microwave Conference Proceedings, APMC2015, 7413407. 9) Shin, P. K., Aziz, M.Z.A.A., Ahmad, B.H., Ramli M. B. H., Fauzi N. A. M., Malek, M. F.A., “Design of broadband single polarized antenna”, International Conference on Mathematics, Engineering and Industrial Applications, ICoMEIA 2014; Penang; Malaysia; 28 May 2014 through 30 May 2014. 10) Phoo, K.S., Aziz, M.Z.A.A., Ahmad, B.H., (...), Suaidi, M.K., Malek, F.A., “Design of a broadband circular polarized antenna” 8th European Conference on Antennas and Propagation, EuCAP 2014, 6902237, pp. 2161-2165. 11)Johar, F.M., Azmin, F.A., Shibghatullah, A.S., (...), Salleh, S.N., Shukor, M.M., “Application of genetic algorithm to the design optimization of complex energy saving glass coating structure”, 2014 Journal of Physics: Conference Series, 495 (1), 012031. 12) H. Nornikman, F. Malek, N. Saudin, M. Md. Shukor, N. A. Zainuddin, M. Z. A. Abd Aziz, B. H. Ahmad, M. A. Othman, “Design of Rectangular Stacked Patch Antenna with Four L-Shaped Slots and CPW-Fed for WiMAX Application”, International Conference on Instrumentation, Communication, Information Technology and Biomedical Engineering (ICICI-BME 2013), Bandung, Indonesia, 2013. 13) H. Nornikman, F. Malek, N. Saudin, N. A. Zainuddin, M. Md. Shukor, M. Z. A. Abd Aziz, B. H. Ahmad, M. A. Othman, “Dual Layer Rectangular Microstrip Patch Antenna with H-Slot for 2.4 GHz Range Applications”, International Conference on Instrumentation, Communication, Information Technology and Biomedical Engineering (ICICI-BME 2013), Bandung, Indonesia, 2013. 14) H. Nornikman, B. H. Ahmad, “Fractal Microstrip Antenna with Minkowski Island Split Ring Resonator for Broadband Application”, 2013 IEEE International RF and Microwave Conference (RFM 2013), Penang, Malaysia, 2013. 15) F. Malek, M. Z. A. Abd Aziz, H. Nornikman, B. H. Ahmad, M. F. Abd Malek, M. H. Mat, M. S. Zulkefli, “Meandered Dipole Yagi-Uda Antenna with Parabolic Reflectors for Global Positioning System (GPS) Applications”, 2013 Loughborough Antennas & Propagation Conference (LAPC 2013), Loughborough, United Kingdom, 2013. 16) F. Malek, M. Md. Shukor, M. Z. A. Abd Aziz, H. Nornikman, M. S. Zulkefli, M. H. Mat, B. H. Ahmad, M. F. Abd Malek, M. A. Othman, “Equilateral Triangular Microstrip Patch Antenna with Spur Lines Embedded”, 2013 Loughborough Antennas & Propagation Conference (LAPC 2013), Loughborough, United Kingdom, 2013. 17) H. Nornikman, B. H. Ahmad, M. Z. A. Abd Aziz, A. R. Othman, M. A. Othman, “Design Minkowski Shaped Patch Antenna with Rectangular Parasitic Patch Elements for 5.8 GHz Applications”, 2013 IEEE Symposium on Wireless Technology and Applications (ISWTA 2013), Kuching, Sarawak, pp. 256-260, 2013. 18) F. Malek, N. A. Zainuddin, M. Z. A. Abd Aziz, H. Nornikman, B. H. Ahmad, M. F. A. Malek, M. A. Othman, “Double C-Shaped Monopole Antenna Array for Dual Band WLAN Application”, 2013 IEEE Symposium on Wireless Technology and Applications (ISWTA 2013), Kuching, Sarawak, pp. 262-266, 2013. 19) H. Nornikman, B. H. Ahmad, M. Z. A. Abd Aziz, M. K. A. Rahim, A. R. Othman, “Investigation of Minkowski Patch Antenna with Meander Line Split Ring Resonator (ML-SRR) Structure”, 7th European Conference on Antennas and Propagation (EuCAP), Gothernberg, Sweden, 8 – 12 Apr 2013. 20) Ahmad B. H., Nornikman H., Aziz A. M. Z. A., Othman M. A., Othman A. R., “Tri-band Minkowski Island Patch Antenna with Complementary Split Ring Resonator at the Ground Plane”, 13th Conference on Microwave Techniques, COMITE 2013 21) Aziz A. M. Z. A., Shukor Md. M., Suaidi M. K., Ahmad B. H., Othman M. A., Hasan N., “Design a 3.5 slot Antenna using Coplanar Waveguide (CPW) for Dual Band Application”, 13th Conference on Microwave Techniques, COMITE 2013 22) Aziz A. M. Z. A., Zakaria Z., Husain M. N., Zaimuddin N. A., Othman M. A., Ahmad B. H., “Investigation of Dual and Triple Meander Slot to Microstrip Patch Antenna”, 13th Conference on Microwave Techniques, COMITE 2013 23) Othman M. A., Sinnappa M., Azman H., Aziz A. M. Z. A., Ismail M. M., Husein M. N., Sulaiman H. A., Misran M. H., Said M. A. M., Ramlee R. A., Ahmad B. H., “5.8 GHz Microwave Doppler Radar for Heartbeat Detection”, 23rd International Conference RADIOELEKTRONIKA 2013 24) Siti Sabariah Sabri, Badrul Hisham Ahmad and Abdul Rani Othman, “AReview of Substrate Integrated Waveguide (SIW) Bandpass Filter Based on Different Method and Design”, 2012 IEEE Asia Pacific Conference on Applied Electromagnetics 25) N. A. Shairi, B. H. Ahmad, M. K. Zahari and Peng Wen Wong, “The Potential Application of Switchable Matched Parallel-Coupled Stub resonator in SPDT Discrete Switch Design”, 2012 IEEE Asia Pacific Conference on Applied Electromagnetics 26) Noor Azwan Shairi, Badrul Hisham Ahmad, Zahriladha Zakaria and Wong Peng Wen, “Single Switchable Open Stub Resonator in SPDT Switch Design”, 2012 IEEE Symposium on Wireless Technology & Applications 27) Nornikman Hassan, Badrul Hisham Ahmad, Mohamad Zoinol Abidin bin Abdul Aziz and Abdul Rani Othman, “Effect of Single Complimentary Split Ring Resonator Structure on Microstrip Patch Antenna Design”, 2012 IEEE Symposium on Wireless Technology & Applications. 28) M. Khairy, B. H. Ahmad and Wong Peng Wen, “Reconfigurable Dual-mode Ring Resonator Matched Bandstop Filter”, 2012 IEEE Symposium on Wireless Technology & Applications 29) Noor Azwan Shairi, Badrul Hisham Ahmad, Zahriladha Zakaria and Wong Peng Wen, “Single Pole Double Throw Discrete PIN Diode Switch with Switchable Quarter Wave Stub Resonator”, 2012 4th International Conference on Communications, Mobility, and Computing (CMC 2012) 30) N. A. Shairi, B. H. Ahmad, A. C. Z. Khang, "Design and Analysis of Broadband High Isolation of Discrete Packaged PIN Diode SPDT Switch for Wireless Data Communication" Proceedings of 2011 IEEE International RF and Microwave Conference (RFM 2011), December 12 – 14, 2011, Seremban, N. Sembilan, Malaysia. 31) N. A. Shairi, B. H. Ahmad, M. Z. A. Abdul Aziz, A. F. Osman , "SPDT Switch with Defected Ground Structure for Time Division Duplex Switching in Wireless Data Communication System" Proceedings of 2011 IEEE International RF and Microwave Conference (RFM 2011), December 12 – 14, 2011, Seremban, N. Sembilan, Malaysia. 32) Z. Zakaria, B. H. Ahmad , "Design of SIW Bandpass Filter with 6 dB Offset" Proceedings of 2011 IEEE International RF and Microwave Conference (RFM 2011), December 12 – 14, 2011, Seremban, N. Sembilan, Malaysia. 33) M. Khairy, B. H. Ahmad, P. W. Wong, N. A. Shairi, "Reconfigurable Matched Bandstop Filter" Proceedings of 2011 IEEE International RF and Microwave Conference (RFM 2011), December 12 – 14, 2011, Seremban, N. Sembilan, Malaysia. 34) Siti Yuszaini Muhammad Hamzah, Badrul Hisham Ahmad, Pen Wen Wong, “Multiband Matched Bandstop Filter”, 2010 IEEE Asia Pacific Conference on Applied Electromagnetics (APACE2010), 9-11 November 2010. 35) Hafrizah Ashidah Abdul Halim, Badrul Hisham Ahmad and Peng Wen Wong, “Microwave Dual Mode Matched Bandstop Filter”, Indonesia- Malaysia Microwave Antenna Conference, 2010. 36) A. Badrul Hisham, M. N. Husain and K. S. Tan, “Analysis and Design of a Hybrid Notch (HN) SIW Bandstop Filter”, Indonesia- Malaysia Microwave Antenna Conference, 2010. 37) N. A. Shairi, B. H. Ahmad and T. A. Rahman, “Performance Analysis of Adjacent Channel Rejection due to Channel Reject Filter in RF Superhetrodyne Receiver based on IEEE 802.11a Standard”, Indonesia- Malaysia Microwave Antenna Conference, 2010. 38) A. B. Hisham, M. N. Husain and K. S. Tan, “Analysis and Design of A Novel Hybrid Reflection Mode (HRM) SIW Bandstop Filter”, International Symposium on Broadband Communication 2010, (ISBC2010). 39) N. A. Shairi, A. B. Hisham and A. F. Osman, “Single Series and Double Shunt SPDT Switch with Defected Ground Structure for Wireless Data Communication at 2.4 GHz Band”, International Symposium on Broadband Communication 2010, (ISBC2010). 40) Noor Azwan Shairi, Badrul Hisham Ahmad, “Design of Defected Ground Structure as a Quarter Wavelength at 2.4 GHz”, Malaysia Technical University Conference on Engineering and Technology, 2010. 41) Badrul Hisham Ahmad, Noor Azwan Shairi dan Redzuan Abdul Manap, “The development of Rectangular Waveguide Bandpass Filter” The 2nd International Conference on Engineering and ICT, 2010. 42) R. A. Manap M. Esro, A. A. Basari and B. H. Ahmad, “Performance Analysis of Block Matching Algorithms in Motion Estimation”, The 2nd International Conference on Engineering and ICT, 2010. 43) N. A. Shairi, B. H. Ahmad, M. Z. A. Abdul Aziz, “Design and Analyses of Direct Conversion RF Receiver for WLAN System based on IEEE 802.11a Standard”. Proceedings of Malaysian Technical Universities Conference on Engineering and Technology (MUCEET 2009), June 20-22, 2009, MS Garden,Kuantan, Pahang, Malaysia. 44) Ahmad, B.H.; Hunter, I.C., “Design and fabrication of a substrate integrated waveguide bandstop filter”, Microwave Conference, 2008. EuMC 2008. 38th European, 27-31 Oct. 2008 Page(s):40 – 42.