Temperature-stabilized 1.7-GHz broad-band lumped-element circulator
Abstract
An integrated broadbanding network consisting of three series resonant circuits on the back of a junction substrate is proposed to develop temperature-stabilized 1.7-GHz braodband lumped-element circulators. Experimental results are presented regarding fundamental junction parameters such as in-phase eigeninductance, parasitic capacitance, and nonreciprocal filling factor. A design theory for temperature compensation of lumped-element circulators is discussed. Based on the results, temperature-stable broadband lumped-element circulators are developed which provide 20-dB isolation bandwidths of 600 MHz (double-tuned type) and 950 MHz (triple tuned type) over the temperature of - 10 C to + 60 C.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- August 1975
- DOI:
- 10.1109/TMTT.1975.1128649
- Bibcode:
- 1975ITMTT..23..689K
- Keywords:
-
- Circulators (Phase Shift Circuits);
- Integrated Circuits;
- Microwave Equipment;
- Network Synthesis;
- Broadband;
- Design Analysis;
- Inductance;
- Magnetic Fields;
- Thermal Stability;
- Electronics and Electrical Engineering