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Design and analysis for three applications of 90-degree single balanced mixer

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8 Author(s)
Man-Long Her ; Dept. of Electron. Eng., Feng Chia Univ., Taichung, Taiwan ; Phun-Fei Teo ; Fan-Hsi Kung ; Chi-Yuan Xie
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Three different types of 90-degree hybrid mixers were designed and analyzed in the ISM 2.4 GHz band. These are general type, low distortion type and size-reduced type. For low distortion type, the 1-dB compression point and 3rd intercept point are increased about 3 dB. 90-degree single balanced mixer has a major shortcoming at 2.4 GHz frequency band with a significant penalty in board space. So another application for a small size 90-degree single balanced mixer was designed by using capacitor compensated method. The size-reduced type can save about 75% of circuit board size and achieve similar performances. In this paper, we will analyze the design concepts of these mixers and discuss the performances of each mixer.

Published in:

Communication Systems, 2002. ICCS 2002. The 8th International Conference on  (Volume:1 )

Date of Conference:

25-28 Nov. 2002