Results 111 to 120 of about 13,537 (225)
Matched pair conical spiral antennas [PDF]
A matched pair of VHF (220-260 MHz) conical spiral antennas for use in a rocket-tracking interferometer array was designed and tested. While gain, bandwidth, impedance, and pattern measurements met specifications, the phase match between antennas at low ...
Metzler, R. E.
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A high-gain omnidirectional satellite antenna technique Final report [PDF]
High gain omnidirectional satellite system design, using planar and circular multiple beam arrays and solid state ...
Chadwick, G. G., Hill, J. E., Kerr, P.
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Iranian Journal of Electrical and Electronic Engineering, 2017 In this article, we present a new design of a coplanar waveguide fed (CPW-fed) ultra-wideband (UWB) antenna with dual band-notched characteristics. Two notched frequency bands are achieved by using two inverted U-shaped stepped impedance resonators.
Y. Zehforoosh, M. Sefidi
doaj
A traveling wave maser for deep space communication at 2295 and 2388 MHz [PDF]
Tunable traveling wave maser for deep space communications and planetary ...
Clauss, R. C.
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The SA-2239/WLQ-4(V) Cutty Sark distribution system [PDF]
A redundant frequency and time distribution system provides a multiplicity of isolated outputs, all of which are derived from three atomic frequency standards.
Ho, J., Vulcan, A.
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S-band microcircuit power amplifier [PDF]
Research, design, development, and fabrication of a two-stage, solid-state, microcircuit power amplifier operating in the 2.25 GHz region of the S-band are summarized. Output is typically 7.0 watts for an input of approximately 400 mw.
Mcgann, W. E.
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Simulation Study on Anti-Interference Performance Degradation of GIS UHF Sensors Based on Substation White Noise Reconstruction. [PDF]
Sensors (Basel)Wang L +6 more
europepmc +1 more source
Multi-frequency fine resolution imaging radar instrumentation and data acquisition [PDF]
Development of a dual polarized L-band radar imaging system to be used in conjunction with the present dual polarized X-band radar is described. The technique used called for heterodyning the transmitted frequency from X-band to L-band and again ...
Champagne, E. B. +5 more
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Bandwidth optimization of compact microstrip antenna for PCS/DCS/bluetooth application
Open Engineering, 2014 Singh Vinod +3 more
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Broadband slant-polarized series-fed microstrip patch antenna array based on magnetic current feeding technology. [PDF]
Sci RepZhao Y +6 more
europepmc +1 more source