International Telemetering Conference Proceedings / October 21, 2002 / Town & Country Hotel and Conference Center, San Diego, California / M/A-COM, Inc. has previously developed a highly integrated transmitter chip set for wireless telemetry
applications for the military L and S band frequencies and the commercial 2.4GHz ISM band. The original
chip set is comprised of a voltage controlled oscillator (VCO), a silicon phase locked loop (PLL), and a
family of power amplifiers (PA's). Using these components, M/A-COM has produced a miniature IRIG-compliant
transmitter module, which has been flight-tested by the U.S. Army’s Hardened Subminiature
Telemetry and Sensor System (HSTSS) program. Since the initial offering, several product enhancements
have been added. The module performance has been improved by tailoring the VCO specifically for direct
frequency modulation applications. In addition to improving noise performance, these enhancements have
produced improved modulation linearity, decreased lock time and increased carrier stability. Modulation
rates in excess of 10Mbps have been demonstrated. High efficiency power amplifiers operating at 3V have
also been added to the family of amplifiers (PAE > 50%). This greatly enhanced efficiency allows higher RF
power output while maintaining the same miniature form factor for the transmitter. Further, M/A-COM has
added a silicon-on-sapphire PLL to the chip set, which operates at frequencies up to 3.0GHz. This paper
details the enhancements to the components within the chip set, and the improvement in performance of the
transmitter module. Test data is presented for the transmitter modules and individual components.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/606385 |
| Date | 10 1900 |
| Creators | Osgood, Karina, Burke, Larry, Webb, Amy, Muir, John, Dearstine, Christina, Quaglietta, Anthony |
| Contributors | M/A-COM, Inc. |
| Publisher | International Foundation for Telemetering |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Proceedings |
| Rights | Copyright © International Foundation for Telemetering |
| Relation | http://www.telemetry.org/ |
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