A Microstrip Patch Electronically Steerable Parasitic Array Radiator (ESPAR) Antenna With Reactance-Tuned Coupling and Maintained Resonance
A new approach to parasitic phased-array antennas is presented. A symmetric two-layer, single-input inexpensive three-element array at 1-GHz employing varactors as tuning mechanisms are designed, fabricated, and measured. The driven element is mutually coupled to two parasitic elements in the H-plan...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2012-04, Vol.60 (4), p.1803-1813 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Luther, Justin J. Ebadi, S. Xun Gong |
| description | A new approach to parasitic phased-array antennas is presented. A symmetric two-layer, single-input inexpensive three-element array at 1-GHz employing varactors as tuning mechanisms are designed, fabricated, and measured. The driven element is mutually coupled to two parasitic elements in the H-plane. The varactors are used to control the mutual coupling and beam scanning and to maintain resonance at 1 GHz. A continuous scanning range of -15 + 15° is measured with maintained impedance matching and radiation pattern integrity. The low cost of diode varactors, used in place of expensive phase shifters, allows for more economic fabrication. This is advantageous to applications in point-to-point communication systems, weather, and target tracking radar systems. |
| doi_str_mv | 10.1109/TAP.2012.2186265 |
| format | Article |
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A symmetric two-layer, single-input inexpensive three-element array at 1-GHz employing varactors as tuning mechanisms are designed, fabricated, and measured. The driven element is mutually coupled to two parasitic elements in the H-plane. The varactors are used to control the mutual coupling and beam scanning and to maintain resonance at 1 GHz. A continuous scanning range of -15 + 15° is measured with maintained impedance matching and radiation pattern integrity. The low cost of diode varactors, used in place of expensive phase shifters, allows for more economic fabrication. 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A symmetric two-layer, single-input inexpensive three-element array at 1-GHz employing varactors as tuning mechanisms are designed, fabricated, and measured. The driven element is mutually coupled to two parasitic elements in the H-plane. The varactors are used to control the mutual coupling and beam scanning and to maintain resonance at 1 GHz. A continuous scanning range of -15 + 15° is measured with maintained impedance matching and radiation pattern integrity. The low cost of diode varactors, used in place of expensive phase shifters, allows for more economic fabrication. This is advantageous to applications in point-to-point communication systems, weather, and target tracking radar systems.</description><subject>Antennas</subject><subject>Applied sciences</subject><subject>Arrays</subject><subject>Beam steering</subject><subject>Capacitance</subject><subject>Communication systems</subject><subject>Couplings</subject><subject>Economics</subject><subject>Exact sciences and technology</subject><subject>Loading</subject><subject>Microstrip</subject><subject>microstrip antennas</subject><subject>patch antenna</subject><subject>Phase shifters</subject><subject>phased arrays</subject><subject>Radiocommunications</subject><subject>Radiolocalization and radionavigation</subject><subject>Resonant frequency</subject><subject>Scanning</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><subject>Tuning</subject><subject>Varactors</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkcGK2zAQhkVpoem290IvolDYHpxKY0uRjyZk28IuDdlAezNjedzV4pVTST7kGfrSVUjYQw-DGM03PzPzM_ZeiqWUov6yb7ZLEBKWII0GrV6whVTKFAAgX7KFENIUNehfr9mbGB9zWpmqWrC_Db9zNkwxBXfgW0z2gW9GsilM3lkcxyO_T0QBu5FyOWB0yVnehIBHvsPeYZoCv97cb5vdZ974RN4j_-nSA98R2oTeUrGfPfV8Pc2H0fnfHH3P79D5lCP_7yhO_sS9Za8GHCO9u7xXbH-z2a-_Fbc_vn5fN7eFLVWZCk2kTAeolVFK130tdCf6Xg2CQIqhtGao6n5FclWCAtJ6EB3BClEYWduuvGLXZ9lDmP7MFFP75KKlcURP0xxbKQCMKauqzOjH_9DHaQ4-D9fWdSmMMAoyJM7Q6Ywx0NAegnvCcMxK7cmbNnvTnrxpL97klk8XXYz5yEPI67v43AdqlZcyOnMfzpwjoueylhWICsp_yTWXcw</recordid><startdate>20120401</startdate><enddate>20120401</enddate><creator>Luther, Justin J.</creator><creator>Ebadi, S.</creator><creator>Xun Gong</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on antennas and propagation, 2012-04, Vol.60 (4), p.1803-1813 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Antennas Applied sciences Arrays Beam steering Capacitance Communication systems Couplings Economics Exact sciences and technology Loading Microstrip microstrip antennas patch antenna Phase shifters phased arrays Radiocommunications Radiolocalization and radionavigation Resonant frequency Scanning Telecommunications Telecommunications and information theory Tuning Varactors |
| title | A Microstrip Patch Electronically Steerable Parasitic Array Radiator (ESPAR) Antenna With Reactance-Tuned Coupling and Maintained Resonance |
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