Results 131 to 140 of about 1,233 (164)
Some of the next articles are maybe not open access.
Aircraft ATC Antenna VSWR On-wing Tester
2014The reason of the ATC antenna failure is mostly the mismatch of the ATC transponder output impedance with the ATC Antenna impedance. The mismatch causes the increasement of the Voltage Standing Wave Ratio (VSWR) and the severe low efficiency of the emission (receive), then the ATC/TCAS system cannot working normally.
openaire +1 more source
VSWR properties of E-plane dihedral corrugated horns
IEEE Transactions on Antennas and Propagation, 1978A moment method solution is used to evaluate the VSWR of dihedral corrugated horns in terms of the various contributors. Knowledge gleaned in this fashion is then used to control these reflections, and in turn reduce the horn VSWR. Use of an appropriate curved horn waveguide geometry in conjunction with a tapered corrugation input yields a very small ...
A. Terzuoli, L. Peters
openaire +1 more source
GaN-HEMT VSWR Ruggedness and Amplifier Protection
2010This paper presents the initial results in a study aimed at exploring the use of GaN-devices in applications where they are at risk of being exposed to high output voltage-standing-wave-ratio (VSWR) conditions. A measurement method developed to identify the limits of such stress is described together with the first results from measurements of novel ...
Bengtsson, O. +5 more
openaire +1 more source
VSWR measurements of linear accelerator structures by a photographic method
Nuclear Instruments and Methods, 1972Abstract A method of quick observation of VSWR of microwave components in rather wider frequency range using a frequency modulated source and a photograph of multiple exposure is presented. The method was applied to the measurements of VSWR of accelerating tubes of JAERI linear accelerator, and the band pass character, the Brillouin diagram, and the ...
openaire +1 more source
Impact of VSWR and RF losses on electron tube performance
2008 IEEE 35th International Conference on Plasma Science, 2008Summary form only given. In fusion applications, the performance of tetrodes are strongly linked to two main parameters: the standing wave ratio, VSWR, any phase, and the RF losses. The aim of this paper is to analyze these two items and their consequences on the operating point of electron tube.
openaire +1 more source
Separation of Reflections for VSWR Measurements
26th ARFTG Conference Digest, 1985openaire +1 more source
Site VSWR Investigation over 1GHz in Taiwan
IEICE Proceeding Series, 2009Y., C. Tang +3 more
openaire +1 more source
Modification of the cavity method for VSWR measurements
Measurement Techniques, 1989openaire +1 more source
VSWR measurement taking into account the form of the detector characteristic
Measurement Techniques, 1972A. L. Gasilov, R. P. Streletskii
openaire +1 more source