Determination of Horn Antenna Phase Centers by Edge Diffraction Theory

Teichman, M. A.

doi:10.1109/taes.1973.309662

Cited by 24 publications

(10 citation statements)

References 9 publications

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“…They can be classified into : Second Derivative Method [3], Two Point Method [4], Edge Diffraction Method [5], Differential Phase Method [6], Three Antenna Method [7], Time of Arrival (TOA) Method [9], and Spherical Phase Method (this paper).…”

Section: Phase Center Determinationmentioning

confidence: 99%

Antenna phase center effects and measurements in GNSS ranging applications

Kunysz

2010

2010 14th International Symposium on Antenna Technology and Applied Electromagnetics &Amp; The American Electromagnetics Confer

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Antenna phase center offset (PCO) location and phase center variation (PCV) play an important role in high-precision GNSS ranging applications that use carrier-phase measurements. For ranging systems that use CDMA code-phase measurements, other statistics play a similar role -antenna group delay center offset (GDCO) and group delay variation (GDV). This paper describes the methods of how to measure and compute these statistics based on amplitude and phase pattern measured for a given antenna. A susceptibility analysis of these statistics versus multipath and antenna design parameters is also made. Practical examples on how to deal with undesired movement of PCO or larger variation of PCV is presented as well.

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Section: Phase Center Determinationmentioning

confidence: 99%

Antenna phase center effects and measurements in GNSS ranging applications

Kunysz

2010

2010 14th International Symposium on Antenna Technology and Applied Electromagnetics &Amp; The American Electromagnetics Confer

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“…Another parameter that is important for reflector and interferometer applications is the phase center location of the horn antenna. For calculation of the phase center location of these antennas several methods have been mentioned …”

Section: Introductionmentioning

confidence: 99%

“…Accuracy of interferometry direction finding method, is related to definition of locations of phase center of each antenna, versus frequency. In this article, stability of phase center is defined as its linearity variation of on antenna axis ( z direction) without any deviation to x or y directions . Phase center varies versus frequency just in z direction, from aperture to apex successively.…”

Section: Introductionmentioning

confidence: 99%

“…For calculation of the phase center location of these antennas several methods have been mentioned. [9][10][11] Double ridged horn antennas are a kind of horn antennas for wideband applications. In recent decades, some analyses on these kinds of antennas have been done.…”

mentioning

confidence: 99%

“…In this article, stability of phase center is defined as its linearity variation of on antenna axis (z direction) without any deviation to x or y directions. 11 Phase center varies versus frequency just in z direction, from aperture to apex successively. To be concise, and for application at 2-6 GHz bandwidth (3:1), this study presents radiation pattern and the location of phase center of antenna in three frequencies, 2, 4, and 6 GHz (samples of low, middle, and high band of operations).…”

mentioning

confidence: 99%

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A novel two‐step flare wide band horn antenna

Manshari

Kashani

Moradi

et al. 2018

Micro & Optical Tech Letters

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In this letter, a novel dual section or two step flare horn antenna for working at 1.5–8 GHz is presented. Novelty of this design is through utilizing of double flare section in horn so that the adverse effects of diffractions caused by ridges on radiation are decreased. The proficiency of new design is indicated in terms of location of the phase center, radiation pattern, and VSWR. Similarity of pattern for the two main polarizations over 10 dB beamwidth at 45° slant rotation is a feature of this antenna for applications that need similar amplitude patterns for two horizontal and vertical polarizations in the main beam. One prototype of antenna has been fabricated and tested with excellent agreement between measured and simulated results. Amplitude radiation patterns of this antenna for vertical and horizontal polarizations and also distance of the phase center from aperture versus frequency are illustrated.

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Determination of the Phase Centers of Millimeter-Wave Horn Antennas Using a Holographic Interference Technique

McAuley

Murphy

McCarthy

et al. 2016

J Infrared Milli Terahz Waves

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In this paper, we discuss how a holographic interference technique can be applied in the experimental determination of the phase centers of non-standard horn antennas in the millimeter-waveband. The phase center is the point inside the horn from which the radiation appears to emanate when viewed from the far-field, and knowing its location is necessary for optimizing coupling efficiencies to quasi-optical systems. For non-standard horn designs, and other feed structures, the phase center may be difficult to reliably predict by simulation, in which case, before committing to antenna manufacture, there is a requirement for it to be determined experimentally. Although the phase center can be recovered by direct phase measurement of the far-field beam pattern, this usually involves expensive instrumentation such as a vector network analyzer for millimeter wave horn antennas. In this paper, we describe one inexpensive alternative, which is based on measuring the interference pattern in intensity between the radiation from the horn of interest and a reference beam derived from the same coherent source in an off-axis holography setup. The accuracy of the approach is improved by comparison with the interference pattern of a well-understood standard horn (such as a corrugated conical horn) in the same experimental setup. We present an example of the technique applied to a profiled smooth-walled horn antenna, which has been especially designed for cosmic microwave background (CMB) polarization experiments.

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Determination of Horn Antenna Phase Centers by Edge Diffraction Theory

Cited by 24 publications

References 9 publications

Antenna phase center effects and measurements in GNSS ranging applications

Antenna phase center effects and measurements in GNSS ranging applications

A novel two‐step flare wide band horn antenna

Determination of the Phase Centers of Millimeter-Wave Horn Antennas Using a Holographic Interference Technique

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