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.


RF Amplifier;IF;Receiver;Microwave


  1. Merrill I. Skolnik, Introduction to Radar Systems, Mc-Graw Hill, 2001.
  2. Kenneth Barnett, Harish Muthali, Susanta Sengupta, Yunfei Feng, Bo Yang, Zhije Xiong, Tae wook Kim, James Jaffee, and Cormac Conroy, "A multi-standard mobile digital video receiver in 0.18 um CMOS process", IEEE Int. Conf. Solid-State Circuits, pp. 154-157, Sep. 2008.
  3. Yin Shi, Fa Foster Dai, Jun Yan, Xueqing Hu, Hua Xu, Ming Gu, Xuelian Zhang, Qiming Xu, Bei Chen, Fangxiong Chen, Peng Yu, Heping Ma, Fang Yuan, and Richard C. Jaeger, "A multifunction transceiver RFIC for 802.a/b/g WLAN and DVB-H applications", IEEE Int. Conf. Custom Integrated Circuits, 2008, pp. 249-252
  4. 고민호, 조윤현, 주영림, 박효달, "광대역 및 다중 대역 시스템용 혼성 변환 방식 RF 전단부 구현을 위한 다중 기능 회로의 설계 및 제작", 한국전자파학회논문지, 21(3), 2010년.
  5. 고민호, 김형주, 나선필, 김재현, "다중 대역 레이더 신호 수신을 위한 이중 모드 주파수 혼합기", 한국전자파학회논문지, 24(11), 2013년.