longitudinal slots on substrate integrated waveguide

Mukherjee, S., Biswas, A., & Srivastava, K. IEEE Antennas and Wireless Propagation Letters, 7, 236–239. Planar slot antenna backed by substrate integrated waveguide cavity. A review on future planar transmission line. IET Microwaves, Antennas & Propagation, 5(8), 909–920. Review of substrate-integrated waveguide circuits and antennas. Quad band printed antenna for Wi-Fi, WLAN, C-band and WiMAX applications. Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 18(2), 173–183. Quad-band printed antenna for portable WLAN applications. IEEE Transactions on Antennas and Propagation, 61(3), 1411–1414. Planar compact slot antenna with multi-band operation for IEEE 802.16m application. IEEE Antennas and Wireless Propagation Letters, 6, 423–426. Design of a compact dual-band annular-ring slot antenna. Those amicable characteristics, e.g., low profile, uni-directional radiation pattern, ease of fabrication, quad-band response and moderate gain, make the proposed antenna suitable for both radar and satellite systems. The proposed antenna attains a peak gain of more than 6 dBi at the corresponding resonant frequencies, respectively.

With the height of 0.026λ 0, the measured results show that the proposed design resonates at 8.6 , 10.2 , 13.2 , and 14.8 GHz and exhibits a –10 dB impedance bandwidth more than 150 MHz at corresponding frequencies. Finally, the proposed quad-band antenna is fabricated using printed circuit board (PCB) technology and the results are experimentally verified. Balanced shorting vias modify the current distributions of the cavity, which consequently produces two resonant frequencies in X-band and two more resonant frequencies in Ku-band. Furthermore, the electric field distribution has been utilized for understanding the working principle of the proposed design. In order to generate four distinct frequencies, a crossed slot is etched on the back of the dielectric substrate and three balanced shorting vias (metallic vias) are included across the longitudinal slot. In this paper, low profile cavity-backed cross shaped slot antenna using substrate integrated waveguide (SIW) technology is proposed for obtaining quad-band response.

Longitudinal slots on substrate integrated waveguide