Millimeter-Wave Microstrip Comb-Line Antenna Using Reflection-Canceling Slit Structure
A microstrip comb-line antenna is developed in the millimeter-wave band. When the element spacing is one guide wavelength for the broadside beam in the traveling-wave excitation, reflections from all the radiating elements are synthesized in phase. Therefore, the return loss increases significantly....
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2011-02, Vol.59 (2), p.398-406 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Hayashi, Y Sakakibara, K Nanjo, M Sugawa, S Kikuma, N Hirayama, H |
| description | A microstrip comb-line antenna is developed in the millimeter-wave band. When the element spacing is one guide wavelength for the broadside beam in the traveling-wave excitation, reflections from all the radiating elements are synthesized in phase. Therefore, the return loss increases significantly. Furthermore, re-radiation from elements due to the reflection wave degrades the design accuracy for the required radiation pattern. We propose the way to improve the reflection characteristic of the antenna with arbitrary beam directions including strictly a broadside direction. To suppress the reflection, we propose a reflection-canceling slit structure installed on the feeding line around each radiating element. A 27-element linear array antenna with a broadside beam is developed at 76.5 GHz. To confirm the feasibility of the simple design procedure, the performance is evaluated through the measurement in the millimeter-wave band. |
| doi_str_mv | 10.1109/TAP.2010.2096180 |
| format | Article |
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When the element spacing is one guide wavelength for the broadside beam in the traveling-wave excitation, reflections from all the radiating elements are synthesized in phase. Therefore, the return loss increases significantly. Furthermore, re-radiation from elements due to the reflection wave degrades the design accuracy for the required radiation pattern. We propose the way to improve the reflection characteristic of the antenna with arbitrary beam directions including strictly a broadside direction. To suppress the reflection, we propose a reflection-canceling slit structure installed on the feeding line around each radiating element. A 27-element linear array antenna with a broadside beam is developed at 76.5 GHz. 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When the element spacing is one guide wavelength for the broadside beam in the traveling-wave excitation, reflections from all the radiating elements are synthesized in phase. Therefore, the return loss increases significantly. Furthermore, re-radiation from elements due to the reflection wave degrades the design accuracy for the required radiation pattern. We propose the way to improve the reflection characteristic of the antenna with arbitrary beam directions including strictly a broadside direction. To suppress the reflection, we propose a reflection-canceling slit structure installed on the feeding line around each radiating element. A 27-element linear array antenna with a broadside beam is developed at 76.5 GHz. To confirm the feasibility of the simple design procedure, the performance is evaluated through the measurement in the millimeter-wave band.</description><subject>Antennas</subject><subject>Applied sciences</subject><subject>Array antenna</subject><subject>Arrays</subject><subject>Beams (radiation)</subject><subject>comb-line antenna</subject><subject>Couplings</subject><subject>Exact sciences and technology</subject><subject>Feasibility</subject><subject>Feeding</subject><subject>Linear arrays</subject><subject>Microstrip</subject><subject>microstrip antenna</subject><subject>Microstrip antenna arrays</subject><subject>Microstrip antennas</subject><subject>millimeter-wave</subject><subject>Propagation losses</subject><subject>Radiocommunications</subject><subject>Reflection</subject><subject>Resonant frequency</subject><subject>Slits</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><subject>Wavelengths</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkc9r2zAUx8XYYFnX-2AXMyg9uXtPthz5GMzWFhJWmvTHTcjq81Bw5FSSC_3vK5PQQ0_iSZ_v48tHjP1AuECE-vdmcXPBIU0c6golfGIzFELmnHP8zGYAKPOaV49f2bcQtmksZVnO2P3K9r3dUSSfP-gXylbW-CFEb_dZM-zafGkdZQsXyTmd3QXr_me31PVkoh1c3mhnqJ8u172N2Tr60cTR03f2pdN9oNPjecLu_v7ZNFf58t_ldbNY5qZEGfMWtNBUAhWFNFhxww3puSjFU9fOBYgSngTWmqqi5lhWbZdaa6w7A0RIpi1O2Plh794PzyOFqHY2pEa9djSMQckKxXwKJ_LXB3I7jN6lckoK5JVEgATBAZocBE-d2nu70_5VIahJs0qa1aRZHTWnyNlxrw5G951PRmx4z_FCimLOeeJ-HjhLRO_PokrfIKB4AzXZhV0</recordid><startdate>20110201</startdate><enddate>20110201</enddate><creator>Hayashi, Y</creator><creator>Sakakibara, K</creator><creator>Nanjo, M</creator><creator>Sugawa, S</creator><creator>Kikuma, N</creator><creator>Hirayama, H</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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When the element spacing is one guide wavelength for the broadside beam in the traveling-wave excitation, reflections from all the radiating elements are synthesized in phase. Therefore, the return loss increases significantly. Furthermore, re-radiation from elements due to the reflection wave degrades the design accuracy for the required radiation pattern. We propose the way to improve the reflection characteristic of the antenna with arbitrary beam directions including strictly a broadside direction. To suppress the reflection, we propose a reflection-canceling slit structure installed on the feeding line around each radiating element. A 27-element linear array antenna with a broadside beam is developed at 76.5 GHz. To confirm the feasibility of the simple design procedure, the performance is evaluated through the measurement in the millimeter-wave band.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TAP.2010.2096180</doi><tpages>9</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Antennas Applied sciences Array antenna Arrays Beams (radiation) comb-line antenna Couplings Exact sciences and technology Feasibility Feeding Linear arrays Microstrip microstrip antenna Microstrip antenna arrays Microstrip antennas millimeter-wave Propagation losses Radiocommunications Reflection Resonant frequency Slits Telecommunications Telecommunications and information theory Wavelengths |
| title | Millimeter-Wave Microstrip Comb-Line Antenna Using Reflection-Canceling Slit Structure |
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