Results 71 to 80 of about 601,761 (190)

Single and Dual Helical Polarizers for Millimeter-Wave Horn Antennas

open access: yesIEEE Open Journal of Antennas and Propagation
This paper presents a helical-based polarizer integrated into the aperture of a pyramidal horn antenna, designed to convert linearly polarized radiated fields into either right- or left-handed circular polarization over two distinct bands. The integrated
Maya Al Ajam   +2 more
doaj   +1 more source

Design of Ground Penetrating Radar Antenna for Detecting Soil Contamination at L-band Frequencies

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
Maintenance of oil pipelines is an issue of great concern for oil companies. Soil contamination is caused by oil leaks from underground pipelines. Ground penetrating radar (GPR) is a rapid and relatively inexpensive technique used for locating and ...
Ahmad H. Abdelgwad, Tarek M. Said
doaj   +1 more source

Design of horn antenna using monopole feed technique / Amirah Adam @ Mat Sidek [PDF]

open access: yes, 2014
This thesis presents the design of a pyramidal horn antenna using monopole feed technique which operates at low frequency and high frequency. The procedure starts with determine the dimensions of conventional horn which consists of the length, flare ...
Adam @ Mat Sidek, Amirah
core  

A Single Layer High-Gain Terahertz Reflectarray Antenna for Next Generation Wireless Communication

open access: yesJournal of High-Frequency Communication Technologies
The design and development of terahertz (THz) reflectarray antenna is presented with a hybrid asteroid–stub–cross unit cell to achieve continuous and complete 360° reflection-phase coverage with minimal amplitude variation of -1.6 dB for an operating ...
Prhishi Santhakumar   +1 more
doaj   +1 more source

Design of horn antenna using monopole feed technique: article / Amirah Adam @ Mat Sidek [PDF]

open access: yes, 2014
The key purpose of the study is to design a pyramidal horn antenna using monopole technique which operates at low frequency and high frequency. The procedure starts with determine the dimensions of conventional horn which consists of the length, flare ...
Adam @ Mat Sidek, Amirah
core  

Analysis of pyramidal horn antennas near a reflecting surface using Green’s functions

open access: yesResults in Engineering
By employing the Huygens element model, we explore a technique for determining the electromagnetic field produced by an aperture antenna near a reflective boundary. Our approach utilizes Green’s tensor functions to compute the electromagnetic field while
Adnan M. Taha   +4 more
doaj   +1 more source

Analysing a Horn Antenna at 220–330 GHz Using Simulations and Near-Field Measurements [PDF]

open access: yes
Wireless communications at sub-THz frequencies require high-gain antennas for practical link distances and increase the complexity of design and testing. This work investigates the operation of a pyramidal horn antenna operating at 220–330 GHz.
Nevala, Klaus   +4 more
core   +1 more source

Development of Ultra-Wideband (UWB)Horn Antenna Using Approximation Method [PDF]

open access: yes, 2012
This paper presents a design of an ultra wide-band (UWB) horn antenna for microwave imaging radar system. The key purpose of the study is to design a horn antenna which is used in medical imaging system.
Othman, A.R.   +3 more
core   +1 more source

Wideband LHCP 3D Printed Pyramidal Horn Antenna with Poisson Distribution Profile Polarizer for CP-SAR Sensor Onboard Microsatellite.

open access: yes, 2018
<p>In this paper we proposed an antenna for Circularly Polarized Synthetic Aperture Radar (CP-SAR) onboard microsatellite. The sensor based on pyramidal horn antenna that utilized Poisson distribution function profile septum polarizer to create a ...
Sumantyo, Josaphat Tetuko S.   +3 more
core   +1 more source

Millimeter-wave integrated-circuit horn-antenna imaging arrays [PDF]

open access: yes, 1992
A new millimeter-wave, integrated-circuit, back-to-back, horn-antennamixer array is presented. The configuration of the array is one called "displaced back-to-back horn-antenna array," which consists of a set of forward- and backward-looking horns made ...
Guo, Yong
core   +1 more source

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