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Wideband Dual Circularly Polarized Antipodal Septum Antenna for Millimeter-Wave Applications
Wideband Dual Circularly Polarized Antipodal Septum Antenna for Millimeter-Wave Applications
- Source :
- IEEE Transactions on Antennas and Propagation. 69:3549-3554
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- A millimeter-wave (mm-Wave) wideband dual circularly polarized (CP) antipodal septum antenna is proposed. By introducing two antipodal septum blames in widened rectangular waveguide and the corresponding feeding network, the operating bandwidth of the septum antenna is enhanced. The working principle of the generation process of dual CP is explained by a three-port model with three excitation conditions. In addition, the asymmetrical radiation pattern of the classical polarizer consisting of square waveguide and single septum caused by the high-order modes is explained and eliminated. To verify the design, the proposed antenna has been fabricated and measured. An operating bandwidth of 37.4% for reflection coefficients less than −13.8 dB, isolation better than 22 dB, and axial ratio (AR) value less than 3 dB is achieved.
- Subjects :
- Physics
Axial ratio
business.industry
Bandwidth (signal processing)
Antipodal point
020206 networking & telecommunications
02 engineering and technology
Polarizer
Radiation pattern
law.invention
Optics
law
Extremely high frequency
0202 electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
Antenna (radio)
Wideband
business
Subjects
Details
- ISSN :
- 15582221 and 0018926X
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Antennas and Propagation
- Accession number :
- edsair.doi...........07f2c44e4d62f98cbc2e40da6f3ed8bf
- Full Text :
- https://doi.org/10.1109/tap.2020.3037768