✦ LIBER ✦

A 58-GHz wide-locking range CMOS direct injection-locked frequency divider using input-power-matching technique

✍ Scribed by Chang-Zhi Chen; Wei-Lun Hsu; Yo-Sheng Lin

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 734 KB
Volume: 51
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.24158

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✦ Synopsis

Abstract

A 58‐GHz (V‐band) CMOS direct injection‐locked frequency‐divider (DILFD) using input‐power‐matching technique for locking‐range enhancement is reported for the first time. In an input‐power‐matching technique, an inductive input‐matching‐network is added to the gate of the NMOS switch to optimize the input‐power‐matching, i.e. to maximize the internal power, over the frequency band of interest. This DILFD architecture also features a very low input capacitance; therefore, high operating frequency of 58.2 GHz can be achieved. The DILFD dissipated 8.45 mW power from a 1.3 V power supply, and achieved a total locking range of 9.3 GHz (48.9–58.2 GHz; 17.4%), which is 400% higher than that (1.86 GHz (3%)) of a traditional DILFD without the input‐matching‐network for comparison. The chip area was only 0.585 × 0.492 mm^2^ excluding the test pads. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 685–689, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24158

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