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Design and Verification of On-Chip Impedance-Matching Circuit Using Transmission-Line Theory for 2.4 GHz-Band Wireless Receiver Front-End
Haruichi KANAYA Ramesh K. POKHAREL Fuminori KOGA Keiji YOSHIDA
Publication
IEICE TRANSACTIONS on Electronics
Vol.E89-C
No.12
pp.1888-1895 Publication Date: 2006/12/01 Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.12.1888 Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Section on Emerging Microwave Techniques) Category: Passive Circuits/Components Keyword: CPW line, impedance-matching circuit, 2.4 GHz-band wireless LAN, λ/4 resonator, transmission-line theory,
Full Text: PDF(1.6MB)>>
Summary:
Recently, spiral inductors have widely been used instead of resistors in the design of matching circuits to enhance the thermal noise performance of a wireless transceiver. However, such elements usually have low quality factor (Q) and may encounter the self-resonance in microwave-frequency band which permits its use in higher frequencies, and on the other hand, they occupy the large on-chip space. This paper presents a new design theory for the impedance-matching circuits for a single-chip SiGe BiCMOS receiver front-end for 2.4 GHz-band wireless LAN (IEEE 802.11b). The presented matching circuits are composed of conductor-backed coplanar waveguide (CPW) meander-line resonators and impedance (K) inverter. The prototype front-end receiver is designed, fabricated and tested. A few of the measured results to verify the design theory are presented.
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