Microstrip Leaky-Wave Antenna With Circular Polarization and Broadside Radiation
- Resource Type
- Periodical
- Authors
- Ahmad, A.; Mukherjee, J.
- Source
- IEEE Antennas and Wireless Propagation Letters Antennas Wirel. Propag. Lett. Antennas and Wireless Propagation Letters, IEEE. 22(9):2265-2269 Sep, 2023
- Subject
- Fields, Waves and Electromagnetics
Gain
Microstrip
Polarization
Antennas
Microstrip antennas
Electric fields
Leaky wave antennas
Broadside frequency
circular polarization
gain
open stopband
periodic leaky-wave antenna (LWA)
- Language
- ISSN
- 1536-1225
1548-5757
In this letter, a novel circularly polarized microstrip leaky-wave antenna (LWA) is proposed with broadside radiation and high gain. A conventional microstrip patch has been modified to obtain broadside gain along with circular polarization. The modified patch is periodically placed along one side of the 50 Ω delay line to form LWA. The optimized broadside frequency of the antenna is 10.1 GHz. The bandwidth associated with 3 dB axial ratio is 13.3% while the maximum obtained gain is 15.8 dBic. The measured gain variation within 3 dB axial ratio bandwidth is 1.6 dB. Measured results of the fabricated antenna follow the simulations.