Results 221 to 230 of about 839,323 (288)

Microwave breast imaging: A review of clinical potential and technological advances. [PDF]

open access: yesWorld J Methodol
Akesson I   +5 more
europepmc   +1 more source

Omnidirectional planar dipole array antenna

IEEE Transactions on Antennas and Propagation, 2004
A planar dipole array antenna having good omnidirectional radiation in the azimuthal plane is presented. The planar dipole array antenna comprises two 1 /spl times/ 2 dipole arrays arranged back to back and separated by a narrow rectangular ground plane, and is easily constructed by printing on both sides of a dielectric substrate.
Kin-Lu Wong   +2 more
exaly   +2 more sources

Planar array antenna

International Symposium on Antennas and Propagation Society, Merging Technologies for the 90's, 1990
The architecture of a new type of L-band multiple-beam antenna (ALE 3*5) for air traffic control (ATC) is presented. The electrical performance makes it equivalent to an antenna with very sharp horizon cutoff, large coverage angles, and high gain. The design requirements are as follows: frequency band of 1.25-1.35 GHz: a modular architecture with few ...
A. Cucci, A. Tomassoni, F. Madia
openaire   +3 more sources

Analysis of planar antenna array

Proceedings of the 2003 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference - IMOC 2003. (Cat. No.03TH8678), 2004
The TTL (transversal transmission line) method is applied to the analysis of patch resonator, as a planar antenna. A set of equations that represents the electromagnetic fields in the x and z direction as function of the electric field in the y direction are obtained.
J.E.C. Neto   +2 more
openaire   +1 more source

Research on planar antenna arrays

2014 International Workshop on Antenna Technology: Small Antennas, Novel EM Structures and Materials, and Applications (iWAT), 2014
This paper presents the analytical and experimental works on coping with the popularity in wireless communications, especially in satellite communication. Firstly, the “image element” and “arc-shaped orthogonal feeding network" technologies are introduced for the single-band single-polarization antenna array design, the cross polarization is suppressed
Ronghong Jin   +3 more
openaire   +1 more source

A Planar Dualband Antenna Array

IEEE Transactions on Antennas and Propagation, 2011
A planar dual-band antenna array for point-to-point communication is presented. The proposed compact antenna array operates at 2.4-2.5 GHz (4%) and 5.1-5.5 GHz (7.5%) with |S11|
Wee Kian Toh   +2 more
openaire   +1 more source

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