A 38-GHz Waveguide-Fed Microstrip Antenna Array Using A Novel Beam-Steering Technique
碩士 === 國立交通大學 === 電信工程系 === 89 === This thesis presents a novel beam-steering technique using microstrip antenna arrays fed by rectangular waveguide. We can control the radiated direction of the antenna arrays by changing the phase delay between the adjacent apertures, It is the way by va...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2001
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| Online Access: | http://ndltd.ncl.edu.tw/handle/30653068240683263503 |
| Summary: | 碩士 === 國立交通大學 === 電信工程系 === 89 === This thesis presents a novel beam-steering technique using microstrip antenna arrays fed by rectangular waveguide. We can control the radiated direction of the antenna arrays by changing the phase delay between the adjacent apertures, It is the way by varying the width of waveguide with installing a metal plate. When the thickness or position of the metal plate we installed is different, the propagation constant is also different. It is easy to design the change of the width of waveguide for the scanning angular range.
The excitation of the individual series-fed array was achieved by varying the dimension of the aperture and the length of open stub. Series-fed antenna array was designed and simulated by IE3D. There are the least loss of microstrip line for microstrip antenna array fed by waveguide. It is most important that, changing the width of the waveguide slightly could scan a big angular range.
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