The design of a single-feed, reduced-size circularly polarized circular microstrip antenna with four slits equally spaced and inset at the boundary of the circular patch is experimentally in¨estigated. Results show that by increasing the slits' lengths to be about 0.8 times the disk radius, the circ
Single-feed annular-ring-sector microstrip antenna for circular polarization
β Scribed by Wen-Hsiu Hsu; Kin-Lu Wong
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 184 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0895-2477
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that a very coarse grid was used with EF equations, with only two cells between the microstrip and the ground plane and four cells across the microstrip. The maximum error in the 20α60 GHz frequency band is 1.5, 6.7, and 13.5% using the enhanced EF, split-cell, and staircase techniques, respectively
## A no¨el dual-frequency design of a single-layer, single-feed circular microstrip antenna with an open-ring slot s demonstrated. The open-ring slot is embedded close to the boundary of the circular patch, and has a small spacing between the two open ends of the slot. By selecting suitable widths o