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

Aregular hexagonal SIW cavity operating at the center frequency of 5.97 GHz was chosen by the authors. A half-mode SIW antenna was obtained from the same by removing half of the cavity along its edge center. The new antenna, thus formed, operates at a frequency of 5.59 GHz within the IEEE 802.11a WLAN U-NII 2C Band. On the radiating surface of the antenna, a T-shaped narrow slot is inserted which miniaturizes the parent antenna and it resonates at 4.83 GHz reflecting a shift of 760 MHz.HFSS software is used to simulate and analyze the antenna parameters.