Results 151 to 160 of about 4,061 (210)

Design of Broadband High-Frequency Multi-Throw RF-MEMS Switches. [PDF]

Micromachines (Basel)
Yu J, Zhang M, Li J, Si Y, Zhu Z, Wu Q, Li M.   +6 more
europepmc   +1 more source

Application of Self-Attention Generative Adversarial Network for Electromagnetic Imaging in Half-Space. [PDF]

Sensors (Basel)
Chiu CC, Lee YH, Chen PH, Shih YC, Hao J.   +4 more
europepmc   +1 more source

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MULTIFREQUENCY STACKED PATCH ANTENNA ANALYSIS

Telecommunications and Radio Engineering, 2023
In this paper, the theoretical and simulated results of a quad-band patch antenna without any air/foam gap between the dielectric layers are discussed. The design idea uses a skated dielectric layers to achieve a multi-frequency operation. The antenna under study includes four patches patterned on the top of layered dielectric substrates and is stacked
Samia Gamouh, Chahra Boukaous, Mohamed Amine Hathat   +2 more
openaire   +1 more source

Multifrequency dielectric EBG antenna

Microwave and Optical Technology Letters, 2004
AbstractThis paper describes how to design an electromagnetic band gap (EBG) resonator antenna to radiate directive patterns for multiple frequencies. The principle is explained and applied to a GSM/DCS antenna. A prototype which is smaller than the GSM/DCS antenna for ease of manufacture, is realized. The operating frequencies are 4.2 GHz and 7.4 GHz.
Ludovic Leger, Raphaël Granger, Marc Thevenot, Thierry Monediere, Bernard Jecko   +4 more
openaire   +1 more source

A multifrequency microstrip antenna

Microwave and Optical Technology Letters, 2005
AbstractInvestigations of a microstrip antenna for multifrequency operation are reported. The integral‐equation method, using IE3D software, is used for the analysis of the antenna. The antenna can be used to operate at four different resonance frequencies with broadside radiation patterns.
Jibendu Sekhar Roy, Jayanta Ghosh
openaire   +1 more source

Multifrequency and broadband optical antennas

SPIE Proceedings, 2012
Traditional optical components have many drawbacks such as bulky size and suffering from the diffraction limits. In order to solve these problems, optical antennas have been proposed recently. It overcomes the constraints imposed by conventional optical devices, allowing unprecedented control of light-matter interactions within sub-wavelength volume.
Hualiang Zhang, J. Ding, Yuankun Lin
openaire   +1 more source

Integrated multifrequency phased array antenna

IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229), 2002
A new wideband small size, multifrequency phased array antenna with beam scanning capability has been designed and developed at X-, K- and Ku-band frequency ranges. The phased array design utilizes multi-function wideband RF antenna (T/R modules) elements, which are realized by integrating a wideband transmitter source (RF amplifiers), low noise ...
R.S. Tahim, J. Foshee, K. Chang
openaire   +1 more source

Multifrequency Metallo-Material Antenna Optimization

2006 IEEE Antennas and Propagation Society International Symposium, 2006
This paper presents a novel multifrequency antenna optimization algorithm to achieve novel metallo-material (magnetic and dielectric) conformal antenna designs. For the first time, combinations of dielectric, magnetic and metallic materials were concurrently modified volumetrically subject to multi-objective optimization criteria.
S. Koulouridis, D. Psychoudakis, J.L. Volakis   +2 more
openaire   +1 more source

Cross slot multifrequency patch antennas

Microwave and Optical Technology Letters, 2011
AbstractTwo simple single layer single feed cross slot patch antennas with air dielectric (εr = 1) substrate providing multiple frequency operation is proposed.At first a cross slot rectangular patch antenna providing quad frequency operation is proposed and experimentally studied.
L. Lolit Kumar Singh, Bhaskar Gupta, Partha P. Sarkar, K. Yoshitomi, K. Yasumoto   +4 more
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A novel multifrequency hybrid antenna

Microwave and Optical Technology Letters, 2013
ABSTRACTA hybrid multifrequency antenna is designed by using a cubic dielectric resonator antenna and coplanar wave guide (CPW) loop radiator. The dielectric resonator antenna (DRA) is also excited by the same CPW. The DRA in conjunction with the CPW loop generates multiple frequencies which may be controlled by optimizing the dimension of the DRA and ...
Sriparna Bhattacharya (Mitra), Bhaskar Gupta   +1 more
openaire   +1 more source