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Feed horn

About: Feed horn is a research topic. Over the lifetime, 2395 publications have been published within this topic receiving 26548 citations. The topic is also known as: feedhorn.


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Patent
Dienes Geza1
19 Apr 1994
TL;DR: An omnidirectional microwave antenna comprises a conical reflector and conical feed horn as mentioned in this paper, where the reflector includes a flange extending outward from an outermost circumference of the surface of revolution of the cone.
Abstract: An omnidirectional microwave antenna comprises a conical reflector and a conical feed horn. The conical reflector has a reflecting surface defined by a cone having an axis and a surface of revolution around the axis. The line of intersection between the surface of revolution and a plane passing through the axis and the surface of revolution is a segment of a parabolic curve. The reflector includes a flange extending outward from an outermost circumference of the surface of revolution of the cone. The conical feed horn feeds microwave energy to the conical reflector from a location along the axis of the cone. The feed horn has an aperture whose center is located approximately at the apex of the cone. The flange has absorptive material mounted thereto for absorbing microwave energy impinging thereon.

11 citations

Proceedings ArticleDOI
01 Sep 2007
TL;DR: In this article, a dual polarization dielectric lens loaded quad-ridged horn antenna can realize higher gain and ultra-wideband character, which is very important in some application.
Abstract: Based on the ultra-wideband ridged horn antenna theory in communication system, a new quad-ridged horn antenna with a lens is described in this paper, which consists of a quad-ridged horn and a dielectric hemispheric lens. By simulation and optimization with CST MWS software which is based on the finite integration technique, a dual polarization dielectric lens loaded quad-ridged horn antenna can realize higher gain and ultra-wideband character. The result shows that in ideal state, the dielectric lens can increase the gain of quad-ridged horn antenna with 3 dB and the 15 dB gain is very important in some application. Besides, the volume of the system does not enlarge much. The simulated return loss S11 of the horn antenna system is better than -10 dB during the operating frequency band from 2 GHz to 18 GHz. Also, for its own structure of the quad-ridged horn antenna, it can realize dual polarization character as describe in this paper. The simulation results and analyses of the ultra-wideband quad-ridged horn antenna are presented.

11 citations

Patent
07 Sep 2007
TL;DR: In this paper, a modular waveguide feed horn is provided that includes an assembly having a waveguide plate section, which is separately provided from and removably coupled to the feed horn.
Abstract: A modular waveguide feed horn is provided that includes an assembly having a waveguide plate section. The modular waveguide feed horn assembly also includes a feed horn section having at least one feed horn. The feed horn section is separately provided from and removably coupled to the waveguide plate section.

11 citations

Journal ArticleDOI
01 Feb 1992
TL;DR: In this paper, the mutual coupling between the feed and the reflector is treated as a multiple-scattering process, which is expressed in terms of the scattering pattern of the feed, the scattered field when the feed is excited by a plane wave with unity amplitude.
Abstract: An improved method for accurately analysing symmetrical primary-fed reflector antennas is presented. The method, which is referred to as the multiple-scattering approach, takes into account the blockage caused by the feed in a very accurate way by also including the mutual coupling between the feed and the reflector. The coupling is treated as a multiple-scattering process. It is expressed in terms of the scattering pattern of the feed, which is the scattered field when the feed is excited by a plane wave with unity amplitude. To validate the method, a reflector antenna with a self-supported dipole-disk feed is investigated. The gain, the copolar sidelobes and the cross-polar level are much more accurately predicted by the multiple-scattering approach than by existing methods, provided that the scattering pattern of the feed can be determined with sufficient accuracy.

11 citations

Journal ArticleDOI
TL;DR: In this paper, a Ka/K-band antenna-feeding network in dual-circular polarization is reported, which operates in the K band (19.25, 20.75) GHz and in the Ka band (27.0, 29.0) GHz.
Abstract: In this paper, a Ka/K-band antenna-feeding network in dual-circular polarization is reported. The design of the system was carried out in view of its monolithic manufacturing through selective laser melting in AlSi10Mg alloy. As a proof-of-concept for satellite telecommunication multi-beam applications, the feeding network operates in the K band (19.25, 20.75) GHz and in the Ka band (27.0, 29.0) GHz. The system provides four rectangular-waveguide ports and a common dual-polarized circular-waveguide port to be connected to the feed horn. The prototype exhibits measured values of in-band return loss better than 28 dB and a port-to-port isolation better than 19 dB (in polarization) and 50 dB (in frequency). The cross-polar discrimination is higher than 20 dB. In this regard, an elliptical-waveguide line was specifically designed and manufactured to recover a value higher than 30 dB in both frequency bands. The line can be easily integrated in the feed horn to be connected to the feeding-network thanks the ease of customization provided by 3D printing. The insertion losses are lower than 0.5 and 0.2 dB in the K and Ka bands, respectively. The weight of the prototype is approximately 130 g.

11 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202313
202254
202123
202024
201934
201841