An Active Double Ring Microstrip Antenna

• Main Authors: cheng-chung chaw, 趙正中
• Other Authors: Ji-Chyun Liu
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/38758734584284119236

碩士 === 中正理工學院 === 電機工程研究所 === 86 === Recently,the communication equipments are widely used in the development of global communication. In application, these equipments adopt the microwave band for operation. Thus, the microwave circuits play a important role in modern microwave communication. Mainly, a small-size,low-cost higher-frequency and low-loss microwave circuit are necessary in practice. Generally, simplified the microwave circuit are available for small-size and low-cost. In this thesis, we proposed a method to have an alternative microstrip antenna designated active microstrip antenna. It can represent the LNA, OSC and Mixer of the conventional superheterdyn receiver in all. It is found the present method can be applied in radar and microwave systems.