A theoretical description of the scattering of multiport antennas is derived in accordance with the polarimetric radar target characterization. For two-port antennas with dual linear orthogonal polarization, a procedure for the determination of the antenna mode scattering parameters and the structural scattering parameters of the complete polarimetric antenna scattering matrix [S] is given. A measurement setup and experimental results of wide-band polarimetric radar cross section (RCS) antenna measurements are presented. For two-port antennas, in total, 24 unknowns have to be determined. The load variation method is used. The polarimetric RCS antenna measurement is especially advantageous over a wide bandwidth; for example 2-40 GHz with only one single calibration. From the antenna scattering matrix [S], the antenna parameters like polarimetric gain, optimum gain, gain bandwidth, wave admittance, structural scattering, etc., are derived. Results are shown for an X-band horn antenna and a 2-18-GHz dual linearly polarized horn. The measurement technique and evaluation gives the most complete and very accurate information about antenna radiation, antenna characteristics, and scattering obtainable with one single measurement setup. Some quantities determined here, like the maximum available gain and the polarization characteristics, are difficult to access with standard transmission measurements. No cable from the antenna to the receiver is necessary. This helps avoid some difficulties usually experienced at low signal levels.

Wide-band multiport antenna characterization by polarimetric RCS measurements

Comparative measurements at 25 frequencies have been
performed on a dual ridge horn involving four different
test facilities in the 1.55-6GHz range. The comparison of
large amounts of measured data is unfeasible by
inspection of pattern differences and should not be limited
to studying boresight differences alone. Therefore a
statistical approach has been implemented for the fast
evaluation of large amounts of measurement data.

Facility comparison and evaluation using dual ridge horn

Improvements proposed over the years in the edge-diffraction model for a pyramidal-horn antenna have been extended to include the three-dimensional nature of the pyramidal horn in evaluating the edge-diffraction fields. The theoretical model was compared with measured results, measured over a number of years at an international standards laboratory for frequencies ranging from 2.45 GHz to 18 GHz, with measurement uncertainties between /spl plusmn/0.04 dB and /spl plusmn/0.1 dB.

Predicting directivity of standard-gain pyramidal-horn antennas

In the frame of the activity “Antenna Measurement Techniques and Facility Sharing” of the EU network ACE “Antenna Centre of Excellence” [1] substantial attention has been devoted to perform a series of antenna measurement facility comparisons. The activities have been performed using SATIMO dual ridge horns in L, S and C band (SH800) and in Ku and Ka band (SH2000) [2–5]. This paper discuss the activities and preliminary results of the comparison campaign in Ku and Ka band using the SATIMO dual ridge 2–32GHz horn (SH2000) shown in Fig. 1. The activities include data collected from both ACE and non ACE participants in Europe and US during a 3 year period.

Facility comparison and evaluation using dual ridge horns

This paper gives an overview of the ongoing activities under the antenna measurement techniques and facility sharing activity of the Antenna Centre of Excellence (ACE) within the EU 6th framework research program. In particular, the activities involving antenna measurement facility comparisons are discussed in detail. These activities are important instruments to verify the measurements accuracies for each range and investigate and evaluate possible improvements in measurement set-up and procedures. Facility comparisons involving high accuracy reference antennas are key instruments for the evaluation, benchmarking and calibration of antenna measurements systems. Regular inter comparisons between accredited measurement facilities are also an important instrument for the measurement traceability and quality maintenance.

Antenna measurement facility comparison within the European Antenna Centre of Excellence

An international intercomparison of horn gain and polarization measurements at X-band has previously been completed. There were seven participating laboratories with the National Institute of Standards and Technology serving as the pilot laboratory. Two X-band pyramidal standard gain horns with a nominal gain of 22 dB served as the traveling standards. Quantities measured included on-axis fixed frequency gain at 8, 10, and 12 GHz, swept frequency gain between 8-12 GHz and polarization characteristics at the three fixed frequencies. All laboratories performed the fixed frequency-gain measurements. The swept-frequency and polarization measurements were optional, with four laboratories performing swept-frequency measurements and three laboratories measuring polarization. The results of the gain measurements generally agreed within the reported uncertainties which were of the order of 0.1 dB or less.

International intercomparison of horn gain at X-band

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

A. G. Repjar

Author Tools

Chat about Author

Papers

International intercomparison of horn gain at X-band