Simultaneous Multifrequency Near-Field Radio Holography of Reflector Antennas
We propose a simultaneous multifrequency near-field radio holography method for measuring reflector surfaces of radio telescopes with high precision. With a comb spectrum generator as the beacon source, this method can obtain aperture phase maps at multiple frequencies simultaneously and thereby red...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2024-08, Vol.72 (8), p.6242-6250 |
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| container_end_page | 6250 |
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| container_issue | 8 |
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| container_title | IEEE transactions on antennas and propagation |
| container_volume | 72 |
| creator | Zhang, Xiaoling Liu, Wei Zuo, Yingxi Lan, Yue Lou, Zheng Qian, Yuan Chen, Bingjie |
| description | We propose a simultaneous multifrequency near-field radio holography method for measuring reflector surfaces of radio telescopes with high precision. With a comb spectrum generator as the beacon source, this method can obtain aperture phase maps at multiple frequencies simultaneously and thereby reduce the interference of multipath signals and improve the measurement precision of radio holography. The simulation and analysis of the multipath effect on antenna beam pattern measurement are presented. A simultaneous multifrequency near-field holography system operating at the W-band is built for experimental validation. Demonstrating experiment conducted on a 1.2-m aperture submillimeter antenna is reported and discussed. |
| doi_str_mv | 10.1109/TAP.2024.3418189 |
| format | Article |
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Demonstrating experiment conducted on a 1.2-m aperture submillimeter antenna is reported and discussed.</description><subject>Antenna measurements</subject><subject>Apertures</subject><subject>Beams (radiation)</subject><subject>Comb spectrum signal</subject><subject>Extraterrestrial measurements</subject><subject>Frequency measurement</subject><subject>Holography</subject><subject>Measurement methods</subject><subject>multipath interference</subject><subject>Near fields</subject><subject>near-field holography</subject><subject>Pattern analysis</subject><subject>Radio astronomy</subject><subject>Radio signals</subject><subject>radio telescope</subject><subject>Radio telescopes</subject><subject>Receivers</subject><subject>Reflector antennas</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkM1PAjEQxRujiYjePXho4nmxn7Q9EiJiAmoQE29N7c7qkmWL7e6B_94SOHiamcx78yY_hG4pGVFKzMN68jZihIkRF1RTbc7QgEqpC8YYPUcDQqguDBt_XqKrlDZ5FFqIAVq-19u-6VwLoU94mdu6ivDbQ-v3-AVcLGY1NCVeubIOeB6a8B3d7mePQ4VXUDXguxDxpO2gbV26RheVaxLcnOoQfcwe19N5sXh9ep5OFoWnSnaFNqXhVHGQlBvQwgihjfRMKfZlJPNaau-k45IzRwhhPO8BnBNjXhEFnA_R_fHuLob8a-rsJvSxzZGWE0OMocKMs4ocVT6GlCJUdhfrrYt7S4k9QLMZmj1Asydo2XJ3tNQA8E8ulZJa8D_rx2cD</recordid><startdate>20240801</startdate><enddate>20240801</enddate><creator>Zhang, Xiaoling</creator><creator>Liu, Wei</creator><creator>Zuo, Yingxi</creator><creator>Lan, Yue</creator><creator>Lou, Zheng</creator><creator>Qian, Yuan</creator><creator>Chen, Bingjie</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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With a comb spectrum generator as the beacon source, this method can obtain aperture phase maps at multiple frequencies simultaneously and thereby reduce the interference of multipath signals and improve the measurement precision of radio holography. The simulation and analysis of the multipath effect on antenna beam pattern measurement are presented. A simultaneous multifrequency near-field holography system operating at the W-band is built for experimental validation. Demonstrating experiment conducted on a 1.2-m aperture submillimeter antenna is reported and discussed.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TAP.2024.3418189</doi><tpages>9</tpages><orcidid>https://orcid.org/0009-0006-2019-879X</orcidid><orcidid>https://orcid.org/0009-0008-6566-5958</orcidid><orcidid>https://orcid.org/0000-0001-9430-6796</orcidid><orcidid>https://orcid.org/0000-0002-2237-3655</orcidid><orcidid>https://orcid.org/0000-0003-2100-3596</orcidid></addata></record> |
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| ispartof | IEEE transactions on antennas and propagation, 2024-08, Vol.72 (8), p.6242-6250 |
| issn | 0018-926X 1558-2221 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Antenna measurements Apertures Beams (radiation) Comb spectrum signal Extraterrestrial measurements Frequency measurement Holography Measurement methods multipath interference Near fields near-field holography Pattern analysis Radio astronomy Radio signals radio telescope Radio telescopes Receivers Reflector antennas |
| title | Simultaneous Multifrequency Near-Field Radio Holography of Reflector Antennas |
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