Ultra-Compact Quarter-Mode Substrate Integrated Waveguide Self-Diplexing Antenna


Iqbal, Amjad and Al-Hasan, Muath and Mabrouk, Ismail Ben and Nedil, Mourad (2021) Ultra-Compact Quarter-Mode Substrate Integrated Waveguide Self-Diplexing Antenna. IEEE Antennas and Wireless Propagation Letters. p. 1. ISSN 1536-1225, 1548-5757

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A highly compact substrate integrated waveguide (SIW) self-diplexing antenna, operating at wireless local area network (WLAN) bands (3.6 GHz and 5.4 GHz), is proposed in this letter. The proposed antenna consists of two closely placed (0.022 λg , where λg is the guided wavelength at 3.6 GHz) quarter-mode SIW (QMSIW) resonators, exited by two coaxial probes. Two rectangular slots are added to the closed-ends of each resonator to generate additional capacitances. Therefore, both resonators operate below their fundamental frequencies, and hence, miniaturization is achieved. Moreover, a reliable circuit model is developed to validate the design process. The proposed antenna has ultra-compact dimensions of 0.08 λ2g with simulated gains of 4.9 and 5.34 dBi at 3.6 GHz and 5.4 GHz, respectively. In addition, the isolation levels are 32.5 dB and 36.6 dB at the lower and higher resonant bands, respectively. Furthermore, both resonant frequencies can be independently controlled by changing the length of the capacitive slots. Due to its compactness, independent resonance control and high isolation, the proposed antenna is suitable for compact and planar radio frequency (RF) components.

Item Type: Article
Uncontrolled Keywords: Aperture antennas, Slot antennas
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Nurul Iqtiani Ahmad
Date Deposited: 01 Jul 2021 03:23
Last Modified: 01 Jul 2021 03:23
URII: http://shdl.mmu.edu.my/id/eprint/8795


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