Patent
Ultra short wave antenna system
Clarence W Hansell
- 21 Jul 1930
10
About: The article was published on 21 Jul 1930. The article focuses on the topics: Antenna (radio).
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Citations
Patent
Collinear dipole array with reflector
Andrew Alford
- 23 Oct 1974
TL;DR: In this paper, an antenna array of collinear, end-fed dipoles spaced substantially less than one-quarter wavelength from the reflector is presented, where successive dipoles are energized through phasing loops with the end dipole energized by a coaxial feeder or by one of the two output ports of a balun.
19
Patent
Colinear antenna apparatus
Robert W Redlich
- 30 Aug 1970
TL;DR: In this paper, a colinear antenna array having three half wave dipoles equally spaced and driven by currents which are equal in magnitude and phase and are properly polarized for a three element broadside array is presented.
16
Patent
Slot antenna array
R Bogner
- 12 Oct 1970
TL;DR: In this paper, the authors proposed a method for causing all radiation from the antenna to be emitted only from sections of the slot of like field polarity without significantly affecting the phase velocity of the signals as they pass from the point of transmission line connection to all other points along the slot, so that the antenna functions as a plural slot array fed with only a single line.
12
Patent
Flat beam intruder detection device
Norman Ian Buckley,Brian Michael Mansfield +1 more
- 21 May 1973
TL;DR: In this article, a VHF transmitter transmits a flat beam of radiation from a directive aerial into an area to be protected against intruders, and a receiver with a directional aerial is positioned at the opposite side of the area, and receives a constant signal from the transmitter.
10
Patent
Radiating electromagnetic resonator
Hansen William W,Varian Russell H +1 more
- 13 Nov 1940
TL;DR: In this paper, the use of suitably apertured hollow resonators for the accomplishment of the result above mentioned is described, and the principal object of this invention is to achieve the projection of radio waves in the form of a beam.
10