Novel Design of Planar Slot Antenna for Circular Polarization
碩士 === 北台灣科學技術學院 === 機電整合研究所 === 95 === Novel designs of circularly polarized（CP）printed Planar slot antennas have been investigated in this dissertation. For the double layer designs, the study of CP slot antenna fed by a microstrip line. The input impedance of slot antenna can be matched by meande...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2007
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| Online Access: | http://ndltd.ncl.edu.tw/handle/80261797460882980762 |
| Summary: | 碩士 === 北台灣科學技術學院 === 機電整合研究所 === 95 === Novel designs of circularly polarized（CP）printed Planar slot antennas have been investigated in this dissertation. For the double layer designs, the study of CP slot antenna fed by a microstrip line. The input impedance of slot antenna can be matched by meander line and microstrip patch The CP radiation is achieved by means of using a shorted square-ring slot. The other study of CP antenna radiation is achieved by means of using a rectangular ring with a gap at thecenter of square slot. The obtained CP are 13.2％ and 7.2％ respectively.
For the single layer designs, the study of CP square slot antenna fed by a single coplanar waveguide. The CP radiation is achieved by means of using a rectangular ring with a gap at the center of a square slot. Finally, the study of CP circle slot antenna. Circle slot have good symmetry structures, therefore radiation characteristics of circle slot is better than square slot. CP bandwidth of square and circle slot are 14.6％ and 16.6％ respectively.
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