The measurement of the p-i-n diodes parameters in the fin-line in the millimeter wave region
Keywords:p-i-n diode, parameters of the p-i-n diode, fin-line, hybrid-integrated circuits
Introduction. It is known, that it is desirable to measure the parameters of semiconductor elements in the transmission lines, in which they are supposed to be installed. The existing methods of measuring them need for calibration procedure, connected with finding the reference plane – a laborious procedure in some cases is generally not feasible with necessary accuracy. In particular, this applies to the requirements in the fin-line which is convenient electrodynamic medium for realization of hybrid-integrated circuits (GIS) in the millimeter wave region. In this paper we propose a technique for measuring the parameters of diodes that does not require calibration. The proposed method makes it possible to find the complex conductivity of mixing, detector and p-i-n diodes (latter being open and closed) with reasonable accuracy.
Description of measurement procedure. The measurement set-up contains a microwave generator, directional coupler for the reflected wave, a section of measuring fin-line with the diode to be tested and standard waveguide short. As a result of theoretical analysis it was shown, that in the case of insignificant losses in measuring section the procedure for finding the diode parameters can be reduced to measurements of distances between the positions of short, at which the maximum and minimum of reflected wave are observed.
Discussion. This section contains the estimation of errors inherent to the proposed method. It was shown, that with the real losses in measuring section the errors in the determining of the diode parameters do not exceed 20% that can be considered acceptable for the development of circuits containing these diodes. As an argument, the fact, that proposed method does not require procedure for establishing the reference plane, inherent to standard methods of measuring impedance, and being the source of the main measurement errors, is put forward.
Conclusion. The proposed technique allows us to quickly estimate the parameters of the diode. In this case the measurements are made in the electrodynamic system of GIS developed with these diodes that gives adequate results for its development. The measurement errors are not more than 20% and can be reduced by reducing the losses in the measuring section.
Morgan M. and Weinreb S. (2005) Techniques for the Integration of High-Q Millimeter-Wave Filters in Multi-Function MMIC Modules. Microwave Journal, Vol. 48, No 5, pp. 182-196.
Fang B., Pu Y., and Luo Y. (2016) A Novel Wideband Antipodal Fin-line Waveguide-toMicrostrip Transition Structure for Ka-band Applications. 27th International Symposium on Space Terahertz Technology, Nanjing, China, April 13-15.
Tan B., Yassin G., Grimes P., Leech J., Jacobs K., Withington S., Tacon M. and Groppi C. (2010) A 700 GHz unilateral finline SIS mixer fed by a multi-flare angle smooth-walled horn. Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, Vol 7741, 774110-1. DOI: 10.1117/12.856711
Mitsubishi Electric (2011) Low Noise GaAs HEMT MGF4941AL.
Altman J. L. (1965) Microwave Circuits (Electronic & Communication). Van Nostrand Reinhold Inc, 462 p.
How to Cite
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).