Results 21 to 30 of about 11,459 (233)

Carbon-Based THz Microstrip Antenna Design: A Review

open access: yesIEEE Open Journal of Nanotechnology, 2022
Increasing demands for high-speed wireless communication have stimulated the development of novel optoelectrical devices. Typically, terahertz (THz) wave, is much advantageous because of its relatively high-resolution transportation and strong ...
Guanxuan Lu   +3 more
doaj   +1 more source

Beam scanning using microstrip line on biased ferrite [PDF]

open access: yes, 1997
The beam scanning properties of a 2-element patch array fed by a microstrip reed situated on a ferrite substrate are presented. Biasing the ferrite changes the phase length or the microstrip line, scanning the beam by up to 40 degrees. The resulting scan
Langley, Richard J., Batchelor, John C.
core   +1 more source

Novel UHF RFID Near-Field Reader Antenna with Uniform Vertical Electric Field Distribution

open access: yesInternational Journal of Antennas and Propagation, 2020
This paper presents two novel UHF RFID near-field reader antennas with uniform vertical electric field distribution. The two antennas have the following common characteristics.
Yanbin Chen   +6 more
doaj   +1 more source

Theory, Design, and Implementation of a New Family of Ultra-Wideband Metamaterial Microstrip Array Antennas Based on Fractal and Fibonacci Geometric Patterns [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2020
The theory and design of a new family of ultra-wideband (UWB) metamaterial (MTM) microstrip array antennas based on fractal and Fibonacci geometric patterns are investigated.
Besharat Rezaei Shookooh   +2 more
doaj   +1 more source

Microsrip Ring Antennas Operating at Higher-Oder Modes for Mobile Communications [PDF]

open access: yes, 1995
An experimental study of microstrip ring antennas suitable for use in mobile communication systems is presented. Conical radiated beams are generated by the TM(21) and TM(41) modes.
Langley, Richard J., Batchelor, John C.
core   +1 more source

An adaptive microstrip patch antenna for use in portable transceivers [PDF]

open access: yes, 1996
This paper describes an adaptive frequency tunable microstrip patch antenna. The introduction of an adaptive feedback loop enables the patch antenna to optimise the antenna-feed impedance match.
Railton, CJ, Rostbakken, O, Hilton, GS
core   +1 more source

Improvement of a Circular Microstrip Antenna Excited by Four Feeds and Suspended with Artificial Magnetic Conductors

open access: yesInternational Journal of Antennas and Propagation, 2013
The proposed antenna is a circular microstrip structure excited by four feeds and suspended with artificial magnetic conductors (AMCs). The multifeed circular microstrip antennas can generate a high circularly polarized performance by using a different ...
Sanchai Eardprab   +2 more
doaj   +1 more source

Four-Element Microstrip Patch Array Antenna with Corporate-Series Feed Network for 5G Communication

open access: yesInternational Journal of Antennas and Propagation, 2020
The paper proposes a simple four-element microstrip patch array antenna fed with corporate-series technique. The paper compares the proposed design with four-element antennas fed with only series-fed and corporate-fed microstrip antennas.
Janam Maharjan, Dong-You Choi
doaj   +1 more source

Scanned microstrip arrays using simple integrated ferrite phase shifters [PDF]

open access: yes, 2000
A phase-steered microstrip antenna array is presented, suitable for application as a mobile vehicle satellite terminal. Phase shifters are implemented on a hybrid dielectric-ferrite substrate, and use is made of the phase transition near the cut-off ...
Langley, Richard J.   +2 more
core   +1 more source

Generation of Plane Spiral Orbital Angular Momentum Waves by Microstrip Yagi Antenna Array

open access: yesIEEE Access, 2020
Compared with the orbital angular momentum (OAM) wave whose 3D radiation pattern is a central-hollowed cone, the plane spiral orbital angular momentum (PSOAM) wave propagates along the transverse direction, which is far more convenient for practical ...
Xiao Yu Liu   +4 more
doaj   +1 more source

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