Results 31 to 40 of about 190,091 (88)

Design of a 60 GHz beam waveguide antenna positioner [PDF]

open access: yes
A development model antenna positioner mechanism with an integral 60 GHz radio frequency beam waveguide is discussed. The system features a 2-ft diameter carbon-fiber reinforced epoxy antenna reflector and support structure, and a 2-degree-of-freedom ...
Emerick, Kenneth S.
core   +1 more source

Rotary antenna attenuator [PDF]

open access: yes, 1969
Radio frequency attenuator, having negligible insertion loss at minimum attenuation, can be used for making precise antenna gain measurements.
Dickinson, R. M., Hardy, J. C.
core   +1 more source

A Broadband UHF Tag Antenna For Near-Field and Far-Field RFID Communications [PDF]

open access: yes, 2014
The paper deals with the design of passive broadband tag antenna for Ultra-High Frequency (UHF) band. The antenna is intended for both near and far fields Radio Frequency Identification (RFID) applications.
de Souza, A. C.   +4 more
core   +1 more source

Large low-frequency orbiting radio telescope [PDF]

open access: yes
Feasibility of orbiting paraboloidal antenna for low frequency radio ...
Hedgepeth, J. M., Schuerch, H. U.
core   +1 more source

Radio frequency performance of a 210-ft ground antenna - X-band [PDF]

open access: yes
Radio frequency performance appraisal of 210 foot ground antenna at X ...
Bathker, D. A.
core   +1 more source

Antenna of the space radiotelescope KRT-3 [PDF]

open access: yes
The questions of antenna design with a diameter of 3 m for space radio-interferometry are examined. The basic characteristics of the antenna are determined, on the basis of which a model of the antenna of a space radiotelescope of 3.1 m KRT-3 is ...
Kostenko, V. I., Matveyenko, L. I.
core   +1 more source

Design and construction of prototype radio antenna for shortest radio wavelengths [PDF]

open access: yes
A paraboloid radio antenna of 10.4 meters diameter, 0.41 meter focal length was constructed and its successful completion is described. The surface accuracy of the antenna is at least four times better than any existing antenna in its class size (50 ...
Leighton, R. B.
core   +1 more source

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