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Compact Circularly Polarized Microstrip Antennas Using EM Coupled Loop Resonators
- Authors
- Choi, Junho; Pyo, Seongmin; Han, Sang-Min; Kim, Young-Sik
- Issue Date
- Oct-2010
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- microstrip antenna; circular polarization; coupled feed; ring resonator
- Citation
- IEICE TRANSACTIONS ON COMMUNICATIONS, v.E93B, no.10, pp.2658 - 2661
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE TRANSACTIONS ON COMMUNICATIONS
- Volume
- E93B
- Number
- 10
- Start Page
- 2658
- End Page
- 2661
- ISSN
- 0916-8516
- Abstract
- In this letter, compact loop resonator type circular polarization (CP) antennas with a square ring and an X-shaped meander loop are presented. Both antennas are fed to a microstrip line with electromagnetic coupling. By adjusting the gap and length of a coupled microstrip line, the magnitude and phase conditions of two orthogonal modes for CP can be determined. The proposed antennas show good axial ratios and also good agreements between experimented and simulated results.
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