2.4/5.7-GHz dual-band dual-conversion architecture with correlated LO signal generators

Jin Siang Syu; Chin-Chun Meng; Sheng Wen Yu; Tzung Han Wu; Guo Wei Huang

doi:10.1109/MWSYM.2009.5165997

2.4/5.7-GHz dual-band dual-conversion architecture with correlated LO signal generators

Jin Siang Syu^*, Chin-Chun Meng, Sheng Wen Yu, Tzung Han Wu, Guo Wei Huang

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A 2.4/5.7-GHz dual-band dual-conversion downconverter is demonstrated using 0.35-μm SiGe heterojunction bipolar transistor (HBT) technology. This downconverter employs a complex dual-conversion system and a complex filter to reject the first and second image signals, respectively. The LO₁ frequency is 2.5 times the LO₂ frequency and is generated by a divide-by-two divider, a frequency doubler and a single-sideband up-converter. As a result, the correlated LO signals maintain excellent image-rejection performance of the dual-conversion system while only one LO input is needed. The downconverter achieves a 40/39-dB image-rejection ratio of the first image and a 44/46-dB image-rejection ratio of the second image for 2.4/5.7-GHz modes, respectively.

Original language	English
Title of host publication	IMS 2009 - 2009 IEEE MTT-S International Microwave Symposium Digest
Pages	1517-1520
Number of pages	4
DOIs	https://doi.org/10.1109/MWSYM.2009.5165997
State	Published - 1 Dec 2009
Event	2009 IEEE MTT-S International Microwave Symposium, IMS 2009 - Boston, MA, United States Duration: 7 Jun 2009 → 12 Jun 2009

Publication series

Name	IEEE MTT-S International Microwave Symposium Digest
ISSN (Print)	0149-645X

Conference

Conference	2009 IEEE MTT-S International Microwave Symposium, IMS 2009
Country	United States
City	Boston, MA
Period	7/06/09 → 12/06/09

Keywords

Dual-band
Image rejection
Low-IF
SiGe heterojunction bipolar transistor (HBT)
Wireless LAN

Access to Document

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title = "2.4/5.7-GHz dual-band dual-conversion architecture with correlated LO signal generators",

abstract = "A 2.4/5.7-GHz dual-band dual-conversion downconverter is demonstrated using 0.35-μm SiGe heterojunction bipolar transistor (HBT) technology. This downconverter employs a complex dual-conversion system and a complex filter to reject the first and second image signals, respectively. The LO1 frequency is 2.5 times the LO2 frequency and is generated by a divide-by-two divider, a frequency doubler and a single-sideband up-converter. As a result, the correlated LO signals maintain excellent image-rejection performance of the dual-conversion system while only one LO input is needed. The downconverter achieves a 40/39-dB image-rejection ratio of the first image and a 44/46-dB image-rejection ratio of the second image for 2.4/5.7-GHz modes, respectively.",

keywords = "Dual-band, Image rejection, Low-IF, SiGe heterojunction bipolar transistor (HBT), Wireless LAN",

author = "Syu, {Jin Siang} and Chin-Chun Meng and Yu, {Sheng Wen} and Wu, {Tzung Han} and Huang, {Guo Wei}",

year = "2009",

month = dec,

day = "1",

doi = "10.1109/MWSYM.2009.5165997",

language = "English",

isbn = "9781424428045",

series = "IEEE MTT-S International Microwave Symposium Digest",

pages = "1517--1520",

booktitle = "IMS 2009 - 2009 IEEE MTT-S International Microwave Symposium Digest",

note = "null ; Conference date: 07-06-2009 Through 12-06-2009",

}

Syu, JS, Meng, C-C, Yu, SW, Wu, TH & Huang, GW 2009, 2.4/5.7-GHz dual-band dual-conversion architecture with correlated LO signal generators. in IMS 2009 - 2009 IEEE MTT-S International Microwave Symposium Digest., 5165997, IEEE MTT-S International Microwave Symposium Digest, pp. 1517-1520, 2009 IEEE MTT-S International Microwave Symposium, IMS 2009, Boston, MA, United States, 7/06/09. https://doi.org/10.1109/MWSYM.2009.5165997

2.4/5.7-GHz dual-band dual-conversion architecture with correlated LO signal generators. / Syu, Jin Siang; Meng, Chin-Chun; Yu, Sheng Wen; Wu, Tzung Han; Huang, Guo Wei.

IMS 2009 - 2009 IEEE MTT-S International Microwave Symposium Digest. 2009. p. 1517-1520 5165997 (IEEE MTT-S International Microwave Symposium Digest).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - 2.4/5.7-GHz dual-band dual-conversion architecture with correlated LO signal generators

AU - Syu, Jin Siang

AU - Meng, Chin-Chun

AU - Yu, Sheng Wen

AU - Wu, Tzung Han

AU - Huang, Guo Wei

PY - 2009/12/1

Y1 - 2009/12/1

N2 - A 2.4/5.7-GHz dual-band dual-conversion downconverter is demonstrated using 0.35-μm SiGe heterojunction bipolar transistor (HBT) technology. This downconverter employs a complex dual-conversion system and a complex filter to reject the first and second image signals, respectively. The LO1 frequency is 2.5 times the LO2 frequency and is generated by a divide-by-two divider, a frequency doubler and a single-sideband up-converter. As a result, the correlated LO signals maintain excellent image-rejection performance of the dual-conversion system while only one LO input is needed. The downconverter achieves a 40/39-dB image-rejection ratio of the first image and a 44/46-dB image-rejection ratio of the second image for 2.4/5.7-GHz modes, respectively.

AB - A 2.4/5.7-GHz dual-band dual-conversion downconverter is demonstrated using 0.35-μm SiGe heterojunction bipolar transistor (HBT) technology. This downconverter employs a complex dual-conversion system and a complex filter to reject the first and second image signals, respectively. The LO1 frequency is 2.5 times the LO2 frequency and is generated by a divide-by-two divider, a frequency doubler and a single-sideband up-converter. As a result, the correlated LO signals maintain excellent image-rejection performance of the dual-conversion system while only one LO input is needed. The downconverter achieves a 40/39-dB image-rejection ratio of the first image and a 44/46-dB image-rejection ratio of the second image for 2.4/5.7-GHz modes, respectively.

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KW - Image rejection

KW - Low-IF

KW - SiGe heterojunction bipolar transistor (HBT)

KW - Wireless LAN

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