NDLI: Distorted reflector antennas: fast and accurate estimation of the surface distortion profile using a new formula

Content Provider	IET Digital Library
Author	Haddadi, Abolfazl Ghorbani, Ayaz Taghikhani, Parastoo
Abstract	The high-frequency applicability of reflector antennas is limited by the distortions and the errors on the reflector surface. Different techniques can be used to compensate the degradation of the radiation characteristics if the surface distortion profile is known. Here, a fast and accurate iterative method has been proposed to determine the surface distortion profile which is based on a newly developed variational formula. The surface fitting has been done in the general form of B-splines, which is suitable for both local and global distortions. Different types of the distortions have been studied to check the accuracy of the method. It has been shown that for distortion amplitudes lower than half of wavelength, the proposed algorithm converges with a high accuracy. In comparison with the previous works, the proposed algorithm has higher accuracy and faster convergence and it needs a lower number of far-field measurements. Despite the microwave holography, in the proposed method there is no need to compute the aperture fields.
Starting Page	1248
Ending Page	1254
Page Count	7
ISSN	17518725
Volume Number	11
e-ISSN	17518733
Issue Number	Issue 9, Jul (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/11/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2016.0943
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2017-03-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Antenna Radiation Characteristic Antenna Radiation Pattern Aperture Antenna Aperture Field B-spLine Distorted Reflector Antenna Estimation Theory Far-field Measurement Interpolation And Function Approximation Iterative Method Mathematics Microwave Holography New Formula Numerical Analysis Reflector Antenna Reflector Surface Single Antenna SpLine Statistics Surface Distortion Profile Variational Formula
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Feed adjustment method of reflector antenna based on far field

An approximation of the radiation integral for distorted reflector antennas using surface-error decomposition

Microwave antenna holography

Surface error diagnosis of large reflector antenna with microwave holography based on active deformation

Optimisation of phase factor in phase retrieval for reflector antennas with active surface

Radiation characteristics improvement of aperture coupled antennas using double reflector structure

A Modified Holographic Technique for Planar Near-Field Antenna Measurements

Microwave holographic metrology of large reflector antennas

Microwave holography of large reflector antennas--Simulation algorithms

Distorted reflector antennas: fast and accurate estimation of the surface distortion profile using a new formula

Similar Documents

Feed adjustment method of reflector antenna based on far field

An approximation of the radiation integral for distorted reflector antennas using surface-error decomposition

Microwave antenna holography

Surface error diagnosis of large reflector antenna with microwave holography based on active deformation

Optimisation of phase factor in phase retrieval for reflector antennas with active surface

Radiation characteristics improvement of aperture coupled antennas using double reflector structure

A Modified Holographic Technique for Planar Near-Field Antenna Measurements

Microwave holographic metrology of large reflector antennas

Microwave holography of large reflector antennas--Simulation algorithms

Distorted reflector antennas: fast and accurate estimation of the surface distortion profile using a new formula