Electronically Steerable 1-D Fabry-Perot Leaky-Wave Antenna Employing a Tunable High Impedance Surface
| Autor: | Andrew R. Weily, Y. Jay Guo, Raul Guzman-Quiros, Jose Luis Gomez-Tornero |
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| Rok vydání: | 2012 |
| Předmět: |
Waveguide (electromagnetism)
Materials science Directional antenna business.industry Leaky wave antenna Antenna measurement Astrophysics::Instrumentation and Methods for Astrophysics Physics::Optics Antenna tuner law.invention High impedance Optics law Optoelectronics Dipole antenna Electrical and Electronic Engineering Antenna (radio) business |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 60:5046-5055 |
| ISSN: | 1558-2221 0018-926X |
| DOI: | 10.1109/tap.2012.2208089 |
| Popis: | A novel fixed-frequency electronically-steerable one-dimensional (1-D) leaky-wave antenna is presented. The antenna is based on a parallel-plate waveguide loaded with a planar partially reflective surface and a tunable high impedance surface (HIS), which creates a 1-D Fabry-Perot leaky-waveguide. The tunable HIS consists of printed patches loaded with varactor diodes that allow the electronic tuning of the cavity resonance condition. Using a simple Transverse Equivalent Network, it is theoretically shown how the variation of the varactors' junction capacitance allows the scanning of the antenna pointing angle from broadside towards the endfire direction at a fixed frequency. Experimental results of an antenna prototype operating at 5.6 GHz are reported, demonstrating that the new reconfigurable leaky-wave antenna can provide electronic beam scanning in an angular range from 9 $^{\circ}$ to 30 $^{\circ}$ |
| Databáze: | OpenAIRE |
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