Compact PCB delay line for six-port based instantaneous frequency measurement

Publikationstyp
Conference Paper
Date Issued
2018-07-05
Sprache
English
Author(s)
Lurz, Fabian  
Scheiner, Benedict  
Linz, Sarah  
Weigel, Robert  
Kölpin, Alexander  orcid-logo
TORE-URI
http://hdl.handle.net/11420/6524
Start Page
87
End Page
90
Citation
International Microwave and Radar Conference, MIKON: 87-90 (2018-07-05)
Contribution to Conference
22nd International Microwave and Radar Conference, MIKON 2018  
Publisher DOI
10.23919/MIKON.2018.8405343
The six-port interferometer is well known for its high phase resolution and is therefor used in a wide range of applications like network analysis, displacement sensors and communication systems. In addition, six-port based instantaneous frequency measurement has recently emerged as a promising alternative for instrumentation of wireless resonant sensors, such as surface acoustic wave (SAW) resonators. This paper discusses the specific requirements and design criteria for a compact and cost-effective radio frequency printed circuit board delay line, which is a core component in the overall measurement system for instantaneous frequency measurement. Finally, a compact realization for the 2.4 GHz frequency band is shown and two different surface finishes, electroless nickel immersion gold as well as immersion silver, are experimentally compared.