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Small-Scale Beam Scanning with an Ultrathin High Impedance Surface-Based Leaky Wave Antenna with Multiple Feeds
- Source :
- 2020 IEEE/MTT-S International Microwave Symposium (IMS).
- Publication Year :
- 2020
- Publisher :
- IEEE, 2020.
-
Abstract
- An ultrathin antenna of thickness nearly 100th of the wavelength is presented, which is capable of providing small-scale beam steering. The antenna is inspired by concepts used in high impedance surfaces (HISs) A linear array antenna comprised of periodic dogbone-shaped elements mounted on top of a grounded substrate with multiple feeds is analyzed to obtain beam scanning and large gain bandwidth, despite the ultrathin thickness. Beam steering is observed when one port at the time is excited among multiple ports distributed along the length of the array. When multiple ports are excited simultaneously, a significantly larger gain bandwidth is observed even from this ultra-low-profile configuration. A maximum gain of 5.7 dBi is achieved along with a 3 dB gain bandwidth over a wide frequency range from 19.2 GHz to 25.2 GHz (27%).
- Subjects :
- Hiss
Materials science
business.industry
Leaky wave antenna
020208 electrical & electronic engineering
Beam steering
020206 networking & telecommunications
02 engineering and technology
Substrate (electronics)
Wavelength
High impedance
Optics
Excited state
0202 electrical engineering, electronic engineering, information engineering
Antenna (radio)
business
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2020 IEEE/MTT-S International Microwave Symposium (IMS)
- Accession number :
- edsair.doi...........f3625d2ae11526c71fceb4f80a91239b