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DIPOLE PHASED ARRAY SCAN PERFORMANCE...

MAYER, ELLIOT D.

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DIPOLE PHASED ARRAY SCAN PERFORMANCE - INFLUENCE OF "BALUN" STRUCTURE (E-PLANE BLIND SPOTS, NUMERICAL SOLUTION, FEED STRUCTURE, FEED REGION MODES, MODAL ANALYSIS, FREQUENCY).

Record Type:	Language materials, printed : Monograph/item
Title/Author:	DIPOLE PHASED ARRAY SCAN PERFORMANCE - INFLUENCE OF "BALUN" STRUCTURE (E-PLANE BLIND SPOTS, NUMERICAL SOLUTION, FEED STRUCTURE, FEED REGION MODES, MODAL ANALYSIS, FREQUENCY)./
Author:	MAYER, ELLIOT D.
Description:	161 p.
Notes:	Source: Dissertation Abstracts International, Volume: 47-05, Section: B, page: 2032.
Contained By:	Dissertation Abstracts International47-05B.
Subject:	Physics, Electricity and Magnetism. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8617290

DIPOLE PHASED ARRAY SCAN PERFORMANCE - INFLUENCE OF "BALUN" STRUCTURE (E-PLANE BLIND SPOTS, NUMERICAL SOLUTION, FEED STRUCTURE, FEED REGION MODES, MODAL ANALYSIS, FREQUENCY).
MAYER, ELLIOT D.

DIPOLE PHASED ARRAY SCAN PERFORMANCE - INFLUENCE OF "BALUN" STRUCTURE (E-PLANE BLIND SPOTS, NUMERICAL SOLUTION, FEED STRUCTURE, FEED REGION MODES, MODAL ANALYSIS, FREQUENCY). - 161 p.

Source: Dissertation Abstracts International, Volume: 47-05, Section: B, page: 2032.

Thesis (Ph.D.)--Polytechnic University, 1986.

For a number of years, it has been known that dipole phased away antennas exhibit blind spots when scanned in the E-plane before the onset of grating lobes.Subjects--Topical Terms:

1019535
Physics, Electricity and Magnetism.

DIPOLE PHASED ARRAY SCAN PERFORMANCE - INFLUENCE OF "BALUN" STRUCTURE (E-PLANE BLIND SPOTS, NUMERICAL SOLUTION, FEED STRUCTURE, FEED REGION MODES, MODAL ANALYSIS, FREQUENCY).
LDR:02313nam 2200241 a 45 001 929680
005 20110427
008 110427s1986 d
035 $a (UnM)AAI8617290
035 $a AAI8617290
040 $a UnM $c UnM
100 1 $a MAYER, ELLIOT D. $3 1253167
245 1 0 $a DIPOLE PHASED ARRAY SCAN PERFORMANCE - INFLUENCE OF "BALUN" STRUCTURE (E-PLANE BLIND SPOTS, NUMERICAL SOLUTION, FEED STRUCTURE, FEED REGION MODES, MODAL ANALYSIS, FREQUENCY).
300 $a 161 p.
500 $a Source: Dissertation Abstracts International, Volume: 47-05, Section: B, page: 2032.
502 $a Thesis (Ph.D.)--Polytechnic University, 1986.
520 $a For a number of years, it has been known that dipole phased away antennas exhibit blind spots when scanned in the E-plane before the onset of grating lobes.
520 $a In this dissertation, the scan and frequency performance of infinite planar dipole phased arrays is analyzed with primary focus on the underlying physical causes of blind spot formation. The dipole and its "balun" feed structure are modelled in strip-line geometry and are a linearly polarized version of the General Electric "Perimeter Array Radar" (PAR) phased array antenna element. The antenna performance is determined via a Galerkin solution to a boundary value problem in a unit cell. The unit cell is subdivided into three regions: the feed ("balun") region, the free space region, and the dipole arm discontinuity between them. It is found that when the array is scanned, the "balun" structure supports unbalanced currents which radiate to the far field and may cause blind spots (total reflection) in the E-plan scan before the onset of the endfire grating lobe condition. The "balun" currents are expressed in terms of feed region modes and the major model contributors to the unbalanced currents which cause the blind spots are determined. Parametric studies reveal the dependence of blind spot angular location on array lattice and element geometry. A narrow angle (30(DEGREES)) design over (+OR-)5% frequency band is shown and recommendations are made for extending the scan coverage.
590 $a School code: 0179.
650 4 $a Physics, Electricity and Magnetism. $3 1019535
690 $a 0607
710 2 0 $a Polytechnic University. $3 1249856
773 0 $t Dissertation Abstracts International $g 47-05B.
790 $a 0179
791 $a Ph.D.
792 $a 1986
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8617290