Persistent Link:
http://hdl.handle.net/10150/612986
Title:
ELECTRONICALLY STEERABLE SPHERICAL ARRAY CAPABILITIES AND INTERFACES
Author:
Taylor, Taliaferro H.
Affiliation:
Ball Aerospace Systems Division
Issue Date:
1982-09
Rights:
Copyright © International Foundation for Telemetering
Collection Information:
Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.
Publisher:
International Foundation for Telemetering
Journal:
International Telemetering Conference Proceedings
Abstract:
For antenna applications which require gains of 7 to 23 dBic over very large solid angle coverage regions, the Electronically Steerable Spherical Array (ESSA) is an antenna which has significant benefits. This paper describes these benefits along with the ESSA’s key performance parameters and its electrical and mechanical interfaces. As extensions of the basic ESSA design, this paper also describes alternate configurations which allow multiple beam operation and integrated packaging of RF electronics. Basically a simple antenna, the ESSA forms its beams by selecting N elements which point in the desired direction. Selection of these elements is performed by a multipole PIN diode switch. This switch sums together the N desired elements from the M elements located on the ESSA’s spherical surface upon receipt of the appropriate commands from the ESSA’s dedicated microprocessor. The ESSA may be either Phase Compensated, or Non-Phase Compensated. In the Phase Compensated ESSA, a 1 or 2 bit phase shifter is used to correct the spherical phase front produced by the array shape. That correction results in higher gain. The most important ESSA benefits are its characteristics of constant phase and gain which are independent of beam pointing angle. These characteristics free the system from the gain and phase perturbations caused by other types of antennas. As a mature technology, the ESSA has been successfully tested with the NASA standard transponder and is presently being fabricated as a 14 dBic gain protoflight unit for a NASA-Goddard Space Flight Center program.
Sponsors:
International Foundation for Telemetering
ISSN:
0884-5123; 0074-9079
Additional Links:
http://www.telemetry.org/

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleELECTRONICALLY STEERABLE SPHERICAL ARRAY CAPABILITIES AND INTERFACESen_US
dc.contributor.authorTaylor, Taliaferro H.en
dc.contributor.departmentBall Aerospace Systems Divisionen
dc.date.issued1982-09-
dc.rightsCopyright © International Foundation for Telemeteringen
dc.description.collectioninformationProceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.en
dc.publisherInternational Foundation for Telemeteringen
dc.description.abstractFor antenna applications which require gains of 7 to 23 dBic over very large solid angle coverage regions, the Electronically Steerable Spherical Array (ESSA) is an antenna which has significant benefits. This paper describes these benefits along with the ESSA’s key performance parameters and its electrical and mechanical interfaces. As extensions of the basic ESSA design, this paper also describes alternate configurations which allow multiple beam operation and integrated packaging of RF electronics. Basically a simple antenna, the ESSA forms its beams by selecting N elements which point in the desired direction. Selection of these elements is performed by a multipole PIN diode switch. This switch sums together the N desired elements from the M elements located on the ESSA’s spherical surface upon receipt of the appropriate commands from the ESSA’s dedicated microprocessor. The ESSA may be either Phase Compensated, or Non-Phase Compensated. In the Phase Compensated ESSA, a 1 or 2 bit phase shifter is used to correct the spherical phase front produced by the array shape. That correction results in higher gain. The most important ESSA benefits are its characteristics of constant phase and gain which are independent of beam pointing angle. These characteristics free the system from the gain and phase perturbations caused by other types of antennas. As a mature technology, the ESSA has been successfully tested with the NASA standard transponder and is presently being fabricated as a 14 dBic gain protoflight unit for a NASA-Goddard Space Flight Center program.en
dc.description.sponsorshipInternational Foundation for Telemeteringen
dc.identifier.issn0884-5123-
dc.identifier.issn0074-9079-
dc.identifier.urihttp://hdl.handle.net/10150/612986-
dc.identifier.journalInternational Telemetering Conference Proceedingsen
dc.typetexten
dc.typeProceedingsen
dc.relation.urlhttp://www.telemetry.org/en
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