A Vector Network Analyzer Based on Seven-Port Wave-Correlator

Toshiyuki YAKABE
Fengchao XIAO

IEICE TRANSACTIONS on Electronics   Vol.E88-C    No.7    pp.1483-1489
Publication Date: 2005/07/01
Online ISSN: 
DOI: 10.1093/ietele/e88-c.7.1483
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Technologies of Microwave and Millimeter-Wave Devices Focusing on Miniaturization and Advancement in Performance with Their Applications)
Category: Measuring Techniques
microwave measurement,  six-port,  seven-port,  VNA,  wave-correlator,  

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A seven-port wave-correlator based vector network analyzer is proposed. The seven-port wave-correlator is a combination of two six-port wave-correlators which share common components. Furthermore, the complex wave ratio measurement accuracy is improved since the input signals can be directly detected by the side-arm ports. A seven-port wave-correlator is fabricated using microstrip branch line couplers. The performance of the wave-correlator and the constructed network analyzer are evaluated, and the measurement accuracy is confirmed.