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Hexagonal Waveguide Based Circularly Polarized Horn Antennas for Sub-mm-Wave/Terahertz Band
IEEE Transactions on Antennas and Propagation, 2018In this paper, we introduce a class of circularly polarized horns realizable at sub-mm-wave and terahertz frequencies. The proposed designs exploit differential dispersion in hexagonal waveguides (a birefringencelike effect), which allows a linear to ...
S. Bhardwaj, J. Volakis
semanticscholar +1 more source
2020
One of the simple and most widely used microwave antennas is the horn as a feed element for large radio telescopes, satellite tracking, and communication reflector, which are found installed throughout the world. In addition to its utility as a feed for reflectors and lenses, it is a common element of phased arrays and serves as a universal standard ...
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One of the simple and most widely used microwave antennas is the horn as a feed element for large radio telescopes, satellite tracking, and communication reflector, which are found installed throughout the world. In addition to its utility as a feed for reflectors and lenses, it is a common element of phased arrays and serves as a universal standard ...
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Broadband Horn Antenna Calculation
2007 17th International Crimean Conference - Microwave & Telecommunication Technology, 2007Design procedure for calculation of broadband horn antenna has been developed on the basis of electromagnetic field equations solution.
V. F. Manoylov, V. V. Pavlyuk
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1999 Asia Pacific Microwave Conference. APMC'99. Microwaves Enter the 21st Century. Conference Proceedings (Cat. No.99TH8473), 2003
A full-wave analysis of a multiple-cavity horn antenna is presented for the accurate and efficient computer-aided design of microwave or millimeter-wave radiating components. A rigorous method of mode matching is employed to study the radiation characteristics including the influence due to all excited higher order modes and mode conversions at the ...
R.B. Hwang, S.T. Peng
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A full-wave analysis of a multiple-cavity horn antenna is presented for the accurate and efficient computer-aided design of microwave or millimeter-wave radiating components. A rigorous method of mode matching is employed to study the radiation characteristics including the influence due to all excited higher order modes and mode conversions at the ...
R.B. Hwang, S.T. Peng
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QCL with terahertz TEM-Horn Antennas
2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics, 2007Quantum Cascade Lasers are one the most promising approach for the generation of THz waves and particularly in a double plasmon waveguide topology. Stripline resonators with a quasi-TEM mode are indeed interesting for THz-QCLs thanks to a high confinement factor combined with low losses.
Akalin, Tahsin +8 more
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Electromagnetics, 1986
ABSTRACT Hybrid mode horns are of considerable practical importance, especially as feeds for lens and reflector antennas. In this tutorial review the boundary conditions necessary to support hybrid modes in round waveguide are derived. Expressions for the field components in HE1n and EH1n modes are given and from these the transverse field over the ...
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ABSTRACT Hybrid mode horns are of considerable practical importance, especially as feeds for lens and reflector antennas. In this tutorial review the boundary conditions necessary to support hybrid modes in round waveguide are derived. Expressions for the field components in HE1n and EH1n modes are given and from these the transverse field over the ...
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Dielectric-loaded horn antenna
IEEE Transactions on Antennas and Propagation, 1972A wide-band dual-mode horn, which has a rotationally symmetric beam and extremely low sidelobe levels, can be obtained by loading a dielectric band inside the horn antenna. Measured radiation characteristics of such antennas, including the so-called shaped-beam antenna, are shown.
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Self-filtering low-noise horn antenna
Proceedings of the 2012 IEEE International Symposium on Antennas and Propagation, 2012In this contribution, we propose an innovative horn antenna design capable to filter undesired noise out. The radiator is based on a regular WR-62 horn, having a metallic screen inserted between the feeding waveguide and the flared aperture. We have drilled a vertical rectangular slit on the screen (the long side of the slit is in the E-plane) and ...
BILOTTI, FILIBERTO +3 more
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Photonic crystal horn and array antennas
Physical Review E, 2003We introduce a defect-based horn antenna in a two-dimensional photonic crystal. Our numerical simulations demonstrate the efficient, highly directional nature of the antenna. It has a large operating bandwidth, low loss, and an operating frequency that is scalable to various regions of the electromagnetic spectrum.
Andrew R, Weily +2 more
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IEEE Antennas and Propagation Magazine, 1990
The construction and history of the calibration horn antenna, a large standard-gain horn at the National Radio Astronomy Observatory, Green Bank, West Virginia, are discussed. Construction of the horn began in 1958. Its purpose was to make absolute measurements by observing a strong source directly with a standard-gain horn antenna.
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The construction and history of the calibration horn antenna, a large standard-gain horn at the National Radio Astronomy Observatory, Green Bank, West Virginia, are discussed. Construction of the horn began in 1958. Its purpose was to make absolute measurements by observing a strong source directly with a standard-gain horn antenna.
openaire +1 more source