Surface Acoustic Wave Microwave Oscillator and Frequency Synthesizer.
Abstract
This final report details the technical progress achieved on task II of the program Surface Acoustic Wave Microwave Oscillator and Frequency Synthesizer. The objective of the Task II effort ws to establish a synthesizer design which, when packaged, provided a significant reduction in size, weight and power consumption as compared with current direct synthesis techniques. The hardware implementation was to highlight Surface Acoustic Wave (SAW) device applications specifically geared toward addressing performance parameters such as switching speed, frequency step size, and total achievable bandwidth, as well as maximum suppression of spurious modes. The approach chosen was to incorporate SAW devices as oscillators and delay lines/filters, together with monolithic large scale itnegrated circuits which work at RF frequencies (RF-LSI) is an iterative mix-and-divide architecture. To this end, a brassboard synthesizer has been fabricated and delivered. At program completion, the brassboard unit is fully operational and has been tested in order to characterize typical unit performance capabilities. The delivered synthesizer demonstrated outstanding switching speed, settling in less than 25 ns and provided an output whose phase noise was measured to be within the specified requirements, as measured to within 2 MHz of the carrier at an output frequency of 1308 MHz. Output spectral flatness was obtainable to within + or - 1.2 dB over the operational band, with achievable output power greater than +10 dBm. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1981
- Accession Number
- ADA107539
Entities
People
- D. J. Dodson
- M. D. Brunsman
- M. Y. Huang