Title :
A frequency conversion scheme for an advanced portable microwave spectrum analyzer
Author :
Hill, Tom ; Lockwood, Larry
Author_Institution :
Tektronix Inc., Beaverton, OR, USA
Abstract :
A block diagram with an unusually high-frequency IF system, resulting in a high-performance spectrum analyzer, is described. The phase noise and short-term frequency stability are not seriously degraded, and the sensitivity is enhanced at high center frequencies. This technique also has applications in modern receivers. Although advanced technology has been applied to all the noted characteristics of spectrum analyzers, the greatest gain has been made with the high local oscillator (LO) frequency. This has been accomplished without degrading overall phase noise or short-term frequency stability.<>
Keywords :
display instrumentation; frequency convertors; microwave measurement; spectral analysers; frequency conversion scheme; high-frequency IF system; local oscillator; microwave spectrum analyzer; phase noise; portable analyser; receivers; sensitivity enhancement; short-term frequency stability; Degradation; Dynamic range; Frequency conversion; Frequency synthesizers; Gallium arsenide; Instruments; Oscillators; Phase noise; Signal resolution; Spectral analysis;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99616
