- Volume 26 Issue 7
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Design and Implementation of Multi-Function Conversion Block for Microwave Receiver
마이크로웨이브 수신기용 다기능 주파수 변환 블록 설계 및 제작
Kim, Jae-Hyun;Go, Min-Ho;Park, Hyo-Dal
- Received : 2015.07.22
- Accepted : 2015.07.24
- Published : 2015.07.30
In this paper, we proposed a multi-function conversion block for microwave receiver. The proposed multi-function conversion block is composed of a broadband voltage controlled oscillator and a dual-mode mixer. Depending on whether the bias voltage is supplied, the first IF(Intermediate Frequency) output frequency(4,595 MHz/6,045 MHz) needed in microwave receiver is converted to 720 MHz and the another IF output frequency(720 MHz) for receiving Ku-band has the multi-functional operations of the dual mode that are bypass and attenuation without frequency conversion. Implementation and measurement results show that each intermediate frequency has conversion loss characteristic according to the LO power. The LO power conversion loss of 4,595 MHz at the LO levels from 2 dBm to 4 dBm is 13 dB, another of 6,035 MHz is 12 dB and the other of 720 MHz is 7.0 dB.
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