Article | GigaHertz 2003. Proceedings from the Seventh Symposium | A SiGe 24 GHz zero-IF downconverter

Title:
A SiGe 24 GHz zero-IF downconverter
Author:
Peter Lindberg: Uppsala University, Sweden Erik öjefors: Uppsala University, Sweden Anders Rydberg: Uppsala University, Sweden
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Year:
2003
Conference:
GigaHertz 2003. Proceedings from the Seventh Symposium
Issue:
008
Article no.:
049
No. of pages:
4
Publication type:
Poster
Published:
2003-11-06
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


This paper describes the design of the main building blocks of a 24 GHz zero-IF downconverter: a voltage controlled oscillator (VCO) and a sub-harmonic mixer (SHM). The circuits have been monolithically implemented in a SiGe HBT process production line using low-resistivity (20Ocm) substrate. Measured results are presented; showing the feasibility of direct conversion receiver (DCR) implementations for the 24 GHz ISM band using a low-cost standard process.

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Peter Lindberg, Erik öjefors, Anders Rydberg
Title:
A SiGe 24 GHz zero-IF downconverter
References:

1. Aravind Loke and Fazal Ali; “Direct Conversion Radio for Digital Mobile Phones Design Issues; Status; and Trends.” IEEE Transactions on Microwave Theory and Techniques; vol. 50; no. 11; November 2002.


2. Richard Svitek et al; “An Active SiGe Sub-Harmonic Direct-Conversion Receiver Front-End Design for 5-6 GHz Band Applications”


3. A. A. Abidi; “Direct-Conversion Radio Transceivers for Digital Communications”; IEEE Journal of Solid-State Circuits; vol. 30; no. 12; December 1995


4. D. A. Johnson; Sanjay Raman; “A Packaged SiGe x2 Sub-Harmonic Mixer for U-NII Band Applications”; IEEE BCTM 10.2; p.159-162.

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Peter Lindberg, Erik öjefors, Anders Rydberg
Title:
A SiGe 24 GHz zero-IF downconverter
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