A compact half-mode SIW semi-hexagonal antenna with t-shaped slot

Banerjee, Soumen; Chatterjee, Sombuddha; Mazumdar, Sampoorna Das; Chakraborty, Shreya; Bhattacharya, Saptarshi; Gangopadhyaya, Malay

doi:10.1109/i2ct.2017.8226225

Cited by 4 publications

(1 citation statement)

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“…The expression for fundamental frequency of hexagonal SIW cavity was proposed in [3] in which approximate expression for the fundamental resonant frequency was reported. Later, a couple of SIW antennas based on a hexagonal structure was developed [4][5][6][7][8][9]. Hexagonal SIW cavity carries the benefits of circular cavity such as high Q-factor and provides more compact structures than circular SIW cavity when there is a requirement to design array antennas.…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Semi-Hexagonal Slot Antenna Backed by Siw for Wlan/Wban Applications

Madhavi¹,

Jagadeesh²

2022

PIER C

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A hexagonal cavity backed antenna based on HMSIW is proposed to operate at 5.2 GHz and 5.8 GHz frequencies. The TM 010 and TM 110 modes of the hexagonal cavity resonator have been chosen to excite the structure. Afterwards, an HMSIW hexagonal cavity is formed by splitting conventional hexagonal cavity resonator along a magnetic wall. This enables a 50% reduction in size without affecting the antenna operating frequency. A rectangular slot is etched at the centre of the magnetic wall to curtail TM 110 mode operating frequency. The dimensions of the slot are optimized to adapt TM 110 resonant frequency to the desired frequency. In free space, the resulting antenna accomplished a peak gain of 5.5 dB and 4.3 dB at centre frequencies of 5.2 GHz and 5.8 GHz, respectively. In the vicinity of pork tissues, the antenna exhibits a peak gain of 4 dB at 5.8 GHz along with an efficiency of 87.2%.

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