Wideband VHF and UHF RF Front-End Receiver for DVB-H Application
- Authors
- Park, Joonhong; Kim, Sunyoul; Ho, Minhye; Baek, Donghyun
- Issue Date
- Jan-2012
- Publisher
- KOREAN INST ELECTR ENG
- Keywords
- CMOS; Wideband; Multistep gain; LNA; Mixer
- Citation
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.7, no.1, pp 81 - 85
- Pages
- 5
- Journal Title
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- Volume
- 7
- Number
- 1
- Start Page
- 81
- End Page
- 85
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/20592
- DOI
- 10.5370/JEET.2012.7.1.81
- ISSN
- 1975-0102
- Abstract
- This paper presents a wideband and low-noise direct conversion front-end receiver supporting VHF and UHFbands simultaneously. The receiver iscomposed of a low-noise amplifier (LNA), a down conversion quadrature mixer, and a frequency divider by 2. The cascode configuration with the resistor feedback is exploited in the LNA to achieve a wide operating bandwidth. Four gain-step modesare employed using a switched resistor bank and a capacitor bank in the signal path to cope with wide dynamic input power range. The verticalbipolar junction transistors are used as the switching elements in the mixer to reduce 1/f noise corner frequency. The proposed front-end receiver fabricated in 0.18 mu m CMOS technology shows very low minimum noise figureof 1.8 dB and third order input intercept pointof -12dBm inthe high-gain mode of 26.5 dBmeasured at 500 MHz.The proposed receiverconsumeslow current of 20 mA from a 1.8 V power supply.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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