Results 11 to 20 of about 167,149 (275)

Antenna-coupled TES bolometer arrays for CMB polarimetry [PDF]

open access: yes, 2008
We describe the design and performance of polarization selective antenna-coupled TES arrays that will be used in several upcoming Cosmic Microwave Background (CMB) experiments: SPIDER, BICEP-2/SPUD.
Bock, J. J.   +16 more
core   +6 more sources

TWO ELEMENT MICROSTRIP ANTENNA ARRAY USING STAR SLOT ELECTROMAGNETIC BAND GAP STRUCTURE [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2019
This paper deals with the performance of two element antenna array without and with electromagnetic band gap structures. The antenna arrays are using Mentor Graphics IE3D software and measurements have been taken using vector network analyzer.
Rao, K. Prahlada   +2 more
doaj   +1 more source

A New Arraying Technique for Band-Switchable and Polarization-Reconfigurable Antenna Arrays With Wide Bandwidth

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
Modern antenna arrays desire antenna apertures which can support a wide frequency range and reconfigurable polarization states. It is challenging to realize such antenna apertures with high isolation among different antenna elements when they are closely
J. Huang, M. Shirazi, X. Gong
doaj   +1 more source

Low‐profile millimetre‐wave wideband microstrip antenna with parasitic patch arrays

open access: yesIET Microwaves, Antennas & Propagation, 2021
A millimetre‐wave low‐profile wideband microstrip antenna is proposed. To widen impedance bandwidth and achieve stable large gain simultaneously, coplanar parasitic patch arrays are arranged on both sides of a microstrip patch fed by a coaxial probe ...
Mei Xue   +3 more
doaj   +1 more source

A new impedance matching method for an ultra-wide band and dual circularly polarised feed [PDF]

open access: yes, 2016
In traditional antenna design, metal components are not placed in the central part of the antenna as they change the characteristics of near field radiation.
Chen, Zhi Jun   +6 more
core   +1 more source

Wirelessly Automated Reconfigurable Antenna With Directional Selectivity

open access: yesIEEE Access, 2017
In this paper, a frequency reconfigurable antenna system with a directional selectivity is presented. The reconfiguration of the antenna's radiation characteristics is wirelessly controlled through a mobile phone and a microcontroller. The antenna system
Youssef Tawk   +5 more
doaj   +1 more source

5G mmWave patch antenna array with proximity sensing function for detecting user's hand grip on mobile terminals

open access: yesElectronics Letters, 2023
We propose a new concept millimetre‐wave patch antenna that integrates the functions of an antenna and a capacitive proximity sensor to detect the hand grip state for 5G mobile terminals and compensate for the hand effect.
Jeong‐Ung Yoo, Hae‐Won Son
doaj   +1 more source

Microstrip adaptive array antenna

open access: yesElectronics Letters, 1996
A planar adaptive array of three microstrip patch antennas consisting of a central active microstrip antenna and two symmetrical lateral passive antennas is used to steer the beam. An electronic beam scanning of /spl plusmn/20/spl deg/ can be achieved with the control of reactive loads located into the lateral patches.
D. Cailleu, N. Haese, P.A. Rolland
openaire   +1 more source

Planar Microstrip Patch Antenna Arrays with Semi-elliptical Slotted Patch and ground Structure for 5G Broadband Communication Systems

open access: yesCogent Engineering, 2022
In fifth-generation (5G) communication systems, the mm-wave (millimeter-wave) frequency band is a key aspect in overcoming the exponential increase in data traffic of the existing cellular networks, which requires compatible and low-profile antenna ...
Ayane L. Goshu   +2 more
doaj   +1 more source

Principles of implementing coaxial microwave connectors for modern radioelectronic systems

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2020
Many modern radioelectronic systems are based on antenna arrays such as APAA (active phased array antenna) or DAAR (digital active array antenna), which require specialized connectors of new types and design solutions for the input/output of the ...
Eduard Glushechenko
doaj   +1 more source

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