A Small Quad-Band Monopole Antenna with Folded Strip Lines for WiMAX/WLAN and ITU Applications

Zehforoosh, Y.; Rezvani, M.

doi:10.1590/2179-10742017v16i41084

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Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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Article • J. Microw. Optoelectron. Electromagn. Appl. 16 (4) • Dec 2017 • https://doi.org/10.1590/2179-10742017v16i41084 copy

A Small Quad-Band Monopole Antenna with Folded Strip Lines for WiMAX/WLAN and ITU Applications

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

In this article, a small Quad-Band microstrip patch antenna with folded strip lines for WiMAX/WLAN and ITU Applications is presented. This antenna consists eight symmetrical rectangular folded strip lines with 2 PIN diodes, ground plane and dimensions of 15×20×1.6mm³. Using PIN diodes integrated within the antenna configuration, the antenna would be able to operate in two modes. The operational frequency bands of antenna are WLAN (2.4/5.2/5.8GHz), WiMAX (3.5/5.5GHz) and ITU-Region 1 allocation (4.3GHz) when diodes=on. In this design approach of antenna, omnidirectional radiation pattern and S₁₁-10dB bandwidths are obtained for all frequency bands. This antenna is fabricated on FR4 substrate with permittivity of 4.4 and loss tangent of 0.024.

Index Terms
Microstrip patch antenna; Quad-Band; WiMAX; WLAN; ITU

Parameter	Value	Parameter	Value
W_sub	15 mm	L₃	1 mm
L_sub	20 mm	L₄	1.25 mm
T_sub	1.6 mm	L_a	3.3 mm
W_f	2 mm	L_b	2.8 mm
L_f	7.2 mm	L_D	3 mm
W_p	10 mm	W₁	0.5 mm
L_p	11.8 mm	W₂	0.5 mm
L_GND	3 mm	W_a	1 mm
L₁	10.8 mm	W_b	0.2 mm
L₂	1 mm	W_c	0.35 mm

Ref	Applications	Fc [GHz]	Dimensions (mm²)	Total area occupied by the antenna (mm²)
[¹⁷17 B. R. Sanjeeva Reddy, and D. Vakula, “Compact Zigzag-Shaped-Slit Microstrip Antenna with Circular Defected Ground Structure for Wireless Applications,” IEEE Antennas and Wireless Propagation Letters, Vol. 14, pp. 678–681, 2015.] 2015	WLAN / WiMAX	2.4/3.5/5.2	40×28	1120
[¹⁸18 Radouane Karli, Hassan Ammor, “Rectangular Patch Antenna for Dual-Band RFID and WLAN Applications,” Wireless Personal Communications, Vol. 83, Issue. 2, pp. 995–1007, February 2015.] 2015	RFID / WLAN	2.45/5.8	28.2×36.7	1034.94
[¹⁹19 Sameer Kumar Sharma, Jai Deep Mulchandani, Devvrat Gupta, Raghvendra Kumar Chaudhary, “Triple-Band Metamaterial-Inspired Antenna Using FDTD Technique for WLAN/WiMAX Applications,” International Journal of RF and Microwave Computer-Aided Engineering, Vol. 25, No. 8, pp. 688–695, August 2015.] 2015	WLAN / WiMAX	2.4/3/5.7	30×30	900
[²⁰20 Rajeshkumar V, Raghavan S, “A Compact Metamaterial Inspired Triple Band Antenna for Reconfigurable WLAN/WiMAX Applications,” International Journal of Electronics and Communications (AEÜ), Vol. 69, Issue. 1, pp. 274–280, January 2015.] 2015	WLAN / WiMAX	2.4/3.5/5	27×25	675
[²¹21 Jagannath Malik, Amalendu Patnaik, and M. V. Kartikeyan, “A Compact Dual-Band Antenna with Omnidirectional Radiation Pattern,” IEEE Antennas and Wireless Propagation Letters, Vol. 14, pp. 503–506, 2015.] 2015	WLAN / WiMAX	2.4/3.5	10×40	400
This Work	WLAN / WiMAX / ITU	2.4/3.5/4.3/5.5	15×20	300

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