Affiliation:
1. University School of Information, Communication and Technology Guru Gobind Singh Indraprastha University New Delhi India
2. Department of Electronics and Communication Engineering Netaji Subhas University of Technology (East Campus) Delhi India
3. Department of Electronics and Communication Engineering Galgotias College of Engineering and Technology Greater Noida India
Abstract
SummaryIn this paper, a high gain self‐triplexing antenna based on the substrate integrated waveguide (SIW) leaky wave technology is presented for tri‐frequency operation. Three identical T‐shaped slots are embedded on the upper layer of the proposed SIW antenna, which are energized by two tapered microstrip lines and a simple microstrip line; and the antenna resonates at three different frequencies (7.75 GHz, 9.1 GHz, and 10.15 GHz). The transverse part of the T‐slot achieves the first band (8.8 to 9.3 GHz), while the longitudinal part of the T‐slot achieves the second band (9.6 to 10.9 GHz), and when excited transversely, the T‐slot achieves the third band (7.5 to 8.2 GHz). The isolation level between the ports is more than 25 dB, which contributes to the phenomenon of self‐triplexing. The gain of the presented antenna is high when compared with other self‐triplexing antennas.