Back to Search
Start Over
A Symmetrical Periodic Leaky-Wave Antenna With Backward-to-Forward Scanning
- Source :
- IEEE Antennas and Wireless Propagation Letters. 19:646-650
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- In this letter, a symmetrical periodic leaky-wave antenna is proposed using an annular-elliptical-shaped unit cell loaded with balanced shorting pins across the E -plane. The proposed structure is a series-fed antenna array with a microstrip feed-line. The even symmetry field distribution across the longitudinal plane of the unit cell has the controllable propagation constant feature. With excitation of double symmetry (even TM21) mode of an annular elliptical patch at broadside frequency, the open stopband is suppressed. Thus, the antenna shows a wideband and a wide scanning capability of 105° (−78° to 27°). The measured results validate the proposed antenna with a maximum realized gain of 16 dB. The possibility of independent control of the directivity and the main beam direction is also presented at a fixed frequency by simultaneously varying two geometrical parameters.
- Subjects :
- Physics
business.industry
Leaky wave antenna
020206 networking & telecommunications
02 engineering and technology
Stopband
Directivity
Microstrip
Antenna array
Optics
0202 electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
Propagation constant
Wideband
Antenna (radio)
business
Subjects
Details
- ISSN :
- 15485757 and 15361225
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- IEEE Antennas and Wireless Propagation Letters
- Accession number :
- edsair.doi...........a94f3140df3c681029250a2a3a6acf37