୍⯡♫ᅋἲே 㟁Ꮚ᝟ሗ㏻ಙᏛ఍                      ಙᏛᢏሗ‫ٻ‬‫ٻڇڮڞڤکڪڭگڞڠڧڠٻڡڪٻڠگڰگڤگڮکڤٻڠڣگ‬                     ‫ٻۏۍۊۋۀڭٻۇڼھۄۉۃھۀگٻڠڞڤڠڤ‬ࣾஂ๏ਓ ిࢠ৘ใ௨৴ֶձ৴ֶٕใ‫ٻڮڭڠڠکڤڢکڠٻکڪڤگڜڞڤکڰڨڨڪڞٻڟکڜٻکڪڤگڜڨڭڪڡکڤ‬                ‫ڜ‬㺃‫ٻڄڌڌڈړڌڋڍڃٻڌڎڌڈړڌڋڍګ‬THE INSTITUTE OF ELECTRONICS,TECHNICAL REPORT OF IEICE.
INFORMATION AND COMMUNICATION ENGINEERS‫ٻ‬੒‫ܗ‬ϏʔϜΛ์ࣹ͢ΔϦϑϨΫτΞϨʔΞϯςφʹ͓͚Δप೾਺ಛੑͷධՁํ๏ਂ୩ɹժҥ†຀໺ɹ࣎†୍઒ɹಓੜ††‫ۏ‬ӜɹѮ†ਢӬɹٝ†தౢɹ޺ণ††† ۚ୔޻‫ۀ‬େֶ ˟ 921–8501 ੴ઒‫ݝ‬໺ʑࢢࢢઔٰ͕ 7–1†† ࡾඛి‫ࣜגػ‬ձࣾ৘ใٕज़૯߹‫ ˟ ॴڀݚ‬247–8501 ਆಸ઒‫חݝ‬૔ࢢେધ 5–1–1E-mail: †b1515521@planet.kanazawa-it.ac.jp͋Β·͠ैདྷͷϦϑϨΫτΞϨʔΞϯςφͷઃ‫ܭ‬๏Ͱ͸ɼप೾਺ಛੑΛղੳ͢Δࡍʹ๲େͳ࣌ؒΛཁ͍ͯͨ͠ɽຊ࿦จͰ͸ɼϦϑϨΫτΞϨʔΞϯςφΛ༻͍ͨ੒‫ܗ‬ϏʔϜΞϯςφͷप೾਺ಛੑΛɼ؆қతʹධՁ͢Δํ๏ΛఏҊ͠ɼ༗ޮੑΛ‫ݕ‬౼ͨ͠ɽ݁Ռͱͯ͠ɼऩࠩཧ࿦Λ༻͍࣮ͯ‫ݱ‬Մೳͳཧ૝ͷप೾਺ಛੑΛ‫ٻ‬ΊΔ͜ͱͰɼղੳ͸਺෼Ͱ‫ྃ׬‬
͢Δ͜ͱ͕Θ͔ͬͨɽ·ͨɼप೾਺ಛੑΛߟྀͨ͠੒‫ܗ‬ϏʔϜઃ‫͍͓ͯʹܭ‬༗ޮͰ͋Δ͜ͱΛࣔͨ͠ɽΩʔϫʔυ ϦϑϨΫτΞϨʔΞϯςφɼ؆қ๏ɼ੒‫ܗ‬ϏʔϜFrequency Characteristic Evaluation of Reﬂectarray Antenna Radiating
Shaped-BeamMei FUKAYA† , Shigeru MAKINO† , Aoi KOTOURA† , Yoshimi SUNAGA† , Michio
TAKIKAWA†† , and Hiromasa NAKAJIMA††† Kanazawa Institute of Technology Ohgigaoka 7–1, Nonoichi, Ishikawa, 921–8501 Japan†† Mitsubishi Electric Corporation Ofuna 5–1–1, Kamakura, Kanagawa 247–8501 Japan
E-mail: †b1515521@planet.kanazawa-it.ac.jp
Abstract n the conventional design method of reﬂect array antenna, it took a huge amount of time to analyze thefrequency characteristics. In this paper, we propose a simple method to evaluate the frequency characteristics of ashaped beam antenna using a reﬂect array antenna, and investigated its eﬀectiveness. As a result, we found that theanalysis can be completed in a few minutes by ﬁnding the ideal frequency characteristics that can be achieved using
aberration theory. Moreover, it is shown that it is eﬀective in the designing beam design considering the frequency
characteristics.
Key words Reﬂect array antenna, Simple method , Shaped beamͰ͋Δɽ͞Βʹɼ‫ڸ‬໘͕‫ۂ‬໘Ͱ͋ΔύϥϘϥʹൺ΂ͯަࠩภ೾

1. ͸ ͡ Ί ʹͷൃੜྔ͕গͳ͘ͳΔɽΑͬͯɼϦϑϨΫτΞϨʔ͸ɼύϥϘϦϑϨΫτΞϨʔ [1] ͸ۚଐ૷ՙ FSR(Frequency Selectiveϥͷ୅ସͱͯ͠ͷར༻͕‫ظ‬଴͞ΕΔɽ

Reﬂectorɿप೾਺બ୒‫͕ )ڸ‬༗͢Δ൓ࣹҐ૬੍‫ػޚ‬ೳΛ൓ࣹ‫ڸ‬ɹҰํͰɼϦϑϨΫτΞϨʔ͸ॴ๬ͷ൓ࣹҐ૬Λຬ଍͢ΔΑ͏ʹద༻ͨ͠΋ͷͰ͋Γɼͦͷ൓ࣹૉࢠͷ൒‫ܘ‬΍‫ܗ‬ঢ়Λద੾ʹબͳૉࢠઃ‫ܭ‬Λߦͬͨ‫ޙ‬ɼͦͷ‫ৼڞ‬ૉࢠΛ༻͍ͯप೾਺ಛੑΛධͿ͜ͱʹΑΓɼҰ࣍์ࣹ‫͔ث‬Β์ࣹ͞Εͨ‫ٿ‬໘೾ͷ൓ࣹҐ૬ΛՁ͍ͯ͠Δɽ͕ͨͬͯ͠ɼૉࢠͷ਺͕ଟ͘ͳΔ΄Ͳૉࢠઃ‫ܭ‬΍੍‫ͯ͠ޚ‬ɼฏ໘೾Λ‫ܗ‬੒͢Δ͜ͱ͕Ͱ͖Δɽ೚ҙͷํ޲ʹϏʔप೾਺ಛੑΛ‫͢ࢉܭ‬Δͷʹ๲େͳ͕͔͔࣌ؒͬͯ͠·͏ɽऩࠩϜΛ޲͚ΒΕΔ΄͔ɼ࠷ۙͰ͸੒‫ܗ‬ϏʔϜ΁ͷద༻΋‫ݕ‬౼͞Εཧ࿦ [2] ΛԠ༻͢Δ͜ͱʹΑΓɼ։‫্ޱ‬ͷҐ૬‫ࠩޡ‬ͷप೾਺ಛ͍ͯΔɽ·ͨɼϦϑϨΫτΞϨʔΛΦϑηοτύϥϘϥΞϯςੑΛ؆қతʹධՁ͢Δํ๏͕ใࠂ͞Ε͓ͯΓ [3] [4]ɼϖϯγϧφʢҎԼɼύϥϘϥʣͱൺֱ͢ΔͱɼϦϑϨΫτΞϨʔ͸‫ڸ‬໘ϏʔϜͷΞϯςφʹ͸͢Ͱʹ؆қ๏͕ద༻Ͱ͖Δ͜ͱ͕ࣔ͞Ε͕ฏ໘Ͱ͋ΔͨΊɼେ෯ͳίετ࡟‫ͱݮ‬੡଄޻ఔͷ୹ॖ͕Մೳ

͍ͯΔ [5]ɽ

- 167 -—1—

This article is a technical report without peer review, and its polished and/or extended version may be published elsewhere.

Copyright ©201 by IEICEɹຊใࠂͰ͸ɼϏʔϜ‫ܗ‬ঢ়͕ෳࡶͳ੒‫ܗ‬ϏʔϜͷΞϯςφઃ‫ܭ‬ʹ͓͚Δप೾਺ಛੑͷධՁ΁ͷ؆қ๏ͷదԠͷՄೳੑΛ‫ݕ‬౼͠ɼઃ‫͔͔ʹܭ‬Δ࣌ؒͷେ෯ͳ୹ॖ͕ՄೳͰ͋Δ͜ͱΛࣔ͢ɽ2. ै དྷ ๏
2. 1 ੒‫ܗ‬ϏʔϜͷઃ‫ܭ‬೔ຊྻౡΛޮ཰Α͘෴͏੒‫ܗ‬ϏʔϜʹ͍ͭͯߟ͑Δɽਤ 1 ʹࣔ͢Α͏ʹɼαʔϏεΤϦΞ͸໘Ͱ͋Δ͕ɼ੒‫ܗ‬ϏʔϜΛઃ‫ܭ‬͢Δࡍʹ͸ɼαʔϏεΤϦΞ಺ʹ͓͚ΔධՁ఺Λ༻͍ΔɽҰൠతʹ͸౳ִؒʹධՁ఺Λ഑ஔ͢Δ͕ɼ৔߹ʹΑͬͯ͸ɼαΠυϩʔϒ΍ΞΠιϨʔγϣϯΛԼ͛ΔͨΊʹɼαʔϏεΤϦΞ෇

ਤ2ैདྷ๏ͷઃ‫ܭ‬खॱۙʹධՁ఺Λઃఆ͢Δඞཁ͕͋Δɽ۩ମతͳप೾਺ಛੑͷධՁखॱΛࣔͨ͠΋ͷΛਤ 2 ʹࣔ͢ɽධՁ఺ΛܾΊΔͱɼධՁؔ਺

2. 2 ൓ࣹҐ૬ͷ࠷దԽF ͕࠷খͱͳΔΑ͏ͳϦϑϨΫτΞϨʔΛߏ੒͢Δۚଐૉࢠͷਤ 1 ʹ͍ࣔͯ͠Δ೔ຊྻౡʹ͓͚ΔධՁ఺ p ͸ (ξ ɼη ʣͰܾ൓ࣹҐ૬͕ܾఆ͢Δɽ൓ࣹҐ૬͕ܾ·Δͱ֤ධՁ఺ͷརಘ͕ܾ·ΔɽGp ͸ධՁ఺ p ͷํ޲ʹ͓͚Δརಘؔ਺Ͱ͋ΓɼධՁ఺·Γɼॴ๬ͷ൓ࣹҐ૬Λ࣮‫͢ݱ‬Δૉࢠઃ‫ܭ‬Λߦ͍ɼܾఆͨ͠ૉͱ֤ૉࢠͷ൓ࣹҐ૬͕ܾ·Δ͜ͱͰɼ‫͞ࢉܭ‬ΕΔɽࢠΑΓ൓ࣹҐ૬ͷप೾਺ಛੑΛղੳ͢ΔɽಘΒΕͨॴ๬ͷ൓ࣹɹैདྷ๏Ͱ͸ɼ࠷‫߱ٸ‬Լ๏Λ༻͍ͯɼධՁؔ਺ F ͕࠷খͱͳΔҐ૬͔Β์ࣹύλʔϯΛղੳ͠ɼ์ࣹύλʔϯͷप೾਺ಛੑΛΑ͏ͳϦϑϨΫτΞϨʔΛߏ੒͢Δۚଐૉࢠͷ൓ࣹҐ૬Λܾఆ֬ೝ͢Δɽ͋͘·ͰαʔϏεΤϦΞͷ‫ܗ‬ঢ়͸ؔ܎ͳ͘ɼઃ‫ʹܭ‬͢ΔɽධՁؔ਺ F Λࣜ (1) ʹࣔ͢ɽඞཁͳͷ͸ධՁ఺ͷΈͰ͋Δɽͭ·ΓɼධՁ఺ͷ਺ͱҐஔͷܾF =ఆ͕ɼ൓ࣹҐ૬ͷप೾਺ಛੑʹؔΘΓɼ௚઀ઃ‫ʹܭ‬Ө‫͢ڹ‬ΔɽP

Wp (Gp − G0 )2(1)p=1ैདྷ๏Ͱ͸ɼ์ࣹύλʔϯͷप೾਺ಛੑ͕ྑ͘ͳ͍৔߹͸ɼධՁ఺ͷ਺ͱҐஔΛ࠶౓༩͑ɼಉ༷ͷखॱͰ‫܁‬Γฦ͠प೾਺ಛੑ

P ‫ݸ‬ͷධՁ఺ p Λઃఆ͠ɼͦΕʹର͢Δཁ‫ٻ‬རಘ G0 ͓ΑͼརͷධՁΛߦΘͳ͚Ε͹ͳΒͳ͍ɽप೾਺ಛੑ͕ྑ͚Ε͹ɼಘΒಘͷॏΈ Wp Λઃఆ͢ΔɽGp ͸൓ࣹҐ૬ͷؔ਺Ͱ͋ΓɼGp ͕Εͨ൓ࣹҐ૬Λ༻͍ͯϦϑϨΫτΞϨʔΛઃ‫͢ܭ‬Δɽ

G0 ͱۙͮ͘΄Ͳ F ͸খ͘͞ͳΔͨΊɼF ͕࠷খͷͱ͖ɼ࠷దͳ൓ࣹҐ૬ͱͳΔ͜ͱ͕Θ͔Δɽ੒‫ܗ‬ϏʔϜͷ৔߹͸ධՁ఺͕ෳ਺͋ΔͨΊɼධՁ఺ͷ༩͑ํ͕ҟͳΕ͹ɼ൓ࣹҐ૬΋์ࣹύλʔϯͷप೾਺ಛੑ΋มԽ͢Δɽ༩͑ํ͕ѱ͚Ε͹ɼ์ࣹύλʔϯͷप೾਺ಛੑ΋ѱ͘ͳΔͷͰɼ࠷దͳϏʔϜ͕ಘΒΕΔ·ͰධՁ఺ p ͓Αͼཁ‫ٻ‬རಘ G0 ͷύϥϝʔλΛมߋ͠ϏʔϜઃ‫ܭ‬Λ‫܁‬Γฦ͠ߦ͏ඞཁ͕͋ΔɽධՁ఺ͷૉࢠͷ൓ࣹҐ૬ͷप೾਺ಛੑ͕͋Β͔͡Ί༧ଌ͕ͭ͘ͷͰ͋Ε͹ɼૉࢠͷઃ‫͓ܭ‬Αͼप೾਺ಛੑղੳͷखॱΛল͘͜ͱ͕Ͱ͖Δɽɹ·ͨɼධՁؔ਺ F Λ࠷খͱ͢ΔΑ͏ͳ൓ࣹҐ૬Λܾఆ͢Δ࠷‫߱ٸ‬Լ๏͸ɼ܏͖ͷ৘ใ͚ͩΛ΋ͱʹ୳ࡧ͢Δ୯७ͳΞϧΰϦζϜͰ͋ΔͨΊɼ‫ࢉܭ‬ෛՙ͕খ͍͕͞ɼऩଋʹ͍ͭͯ͸ଞͷ࠷దԽखஈΑΓ΋஗͘ͳΔͱ͍͏఺͕͋Δɽ͔͠͠ͳ͕Βɼॳ

ਤ1೔ຊྻౡʹ͓͚ΔαʔϏεΤϦΞ͓ΑͼධՁ఺‫ظ‬஋ʹؔΘΒͣ‫ॴہ‬ղ·ͨ͸࠷దղʹऩଋ͢Δͱ͍͏ಛ௃͕͋Γɼ͜Ε·Ͱͷ‫ʹڀݚ‬ΑͬͯɼϦϑϨΫτΞϨʔͷ൓ࣹҐ૬࠷దԽʹ͸࠷‫߱ٸ‬Լ๏͕ద͍ͯ͠Δ͜ͱ͕Θ͔͍ͬͯΔɽ

2. 3 ैདྷ๏ͷ໰୊఺ϦϑϨΫτΞϨʔͷઃ‫͍͓ͯʹܭ‬ɼ։‫ ܘޱ‬500mm ͷ੒‫ܗ‬ϏʔϜͷϦϑϨΫτΞϨʔͷ‫ڸ‬໘ͷ৔߹ɼૉࢠ਺͸ Ka ଳͷઃ‫ܭ‬प೾਺ 28.75GHz Ͱ 13310 ‫ͳͱݸ‬Δɽߴप೾ʹͳΔ΄Ͳૉࢠ਺͸૿Ճ͢Δ܏޲ʹ͋Δɽૉࢠઃ‫Ͱܭ‬͸ɼ͜ΕΒͷૉࢠ 1 ͭͣͭΛઃ‫͢ܭ‬ΔͨΊɼॴཁ࣌ؒ͸ૉࢠ਺ʹൺྫ͢Δɽ൓ࣹҐ૬ͷप೾਺ಛੑΛղੳ͢Δࡍʹ͓͍ͯ΋ɼૉࢠ̍ͭͣͭΛղੳ͠ͳ͚Ε͹ͳΒͳ͍ͨΊɼղੳ࣌ؒ͸ૉࢠ਺ʹൺྫͯ͠૿͑ΔɽKa ଳͷ੒‫ܗ‬ϏʔϜઃ‫ܭ‬ϦϑϨΫτΞϨʔʹ͓͍ͯɼૉࢠઃ‫ܭ‬- 168 -—2—ͷॴཁ࣌ؒ͸໿ 118 ࣌ؒɼ൓ࣹҐ૬ղੳͰ͸ɼॴཁ͕֤࣌ؒपλʔϯʹӨ‫ڹ‬͸ͳ͘ɼ؆қ๏͸ϖϯγϧϏʔϜઃ‫͍͓ͯʹܭ‬ଥ೾਺Ͱฏ‫ۉ‬໿ 8 ࣌ؒ 30 ෼ͱͳͬͨɽ͜ͷΑ͏ʹɼैདྷ๏Λ༻౰ੑ͕͋Δ͜ͱ͕൑໌ͨ͠ɽ͜ΕΑΓɼैདྷ๏ͷप೾਺ಛੑධ͍ͨप೾਺ಛੑͷධՁͰ͸ɼ1 ͭͷ൓ࣹҐ૬ͷप೾਺ಛੑධՁ

ՁͰ͸ 1 प೾Ͱ਺ඦ࣌ؒΛཁ͢Δͷʹର͠ɼ؆қ๏Ͱ͸प೾਺ʹ๲େͳ͕࣌ؒඞཁͰ͋Δɽ͞Βʹɼਤ 3 ʹࣔ͢Α͏ʹɼઃ‫ܭ‬ಛੑධՁΛ਺෼ʹ୹ॖ͢Δ͜ͱ͕࣮‫͖ͨͰݱ‬ɽ

प೾਺ 28.75GHz Ͱ͸ϏʔϜ‫ܗ‬ঢ়͕อͨΕ͍ͯΔ͕ɼ27.5GHzʹ͓͍ͯϏʔϜ‫ܗ‬ঢ়่͕ΕΔ৔߹ͳͲɼઃ‫ܭ‬प೾਺͔ΒͣΕͨ೚ҙͷप೾਺ʹ͓͚Δप೾਺ಛੑ͕ྑ͘ͳ͚Ε͹ɼධՁ఺Λ࠶౓༩͑ͳ͚Ε͹ͳΒͳ͍ɽ੒‫ܗ‬ϏʔϜʹ͓͚Δॴ๬ͷ൓ࣹҐ૬ͷܾఆ͸ඇઢ‫ܗ‬తͳ໰୊Ͱ͋ΔͨΊɼप೾਺ಛੑͷྑ͍൓ࣹҐ૬͕ಘΒΕΔ·Ͱɼਤ 2 ͷखॱΛԿ౓΋‫܁‬Γฦ͢ඞཁ͕͋Δɽɹ͕ͨͬͯ͠ɼޮ཰Α͘αʔϏεΤϦΞΛ෴͏੒‫ܗ‬ϏʔϜΛઃ‫͢ܭ‬Δʹ͸ɼ๲େͳ‫ؒ࣌ࢉܭ‬Λ࡟‫͢ݮ‬Δඞཁ͕͋Δɽਤ 2 ʹࣔ͢ૉࢠઃ‫ͱܭ‬൓ࣹҐ૬ͷप೾਺ղੳͷ๲େͳ‫ࢉܭ‬Λඞཁͱ͠ͳ͍ɼप೾਺ಛੑΛ؆қతʹධՁ͢Δ৽ͨͳํ๏Λ 3 અʹఏҊ
ਤ 4 Ku ଳϖϯγϧϏʔϜઃ‫ܭ‬ϦϑϨΫτΞϨʔͷ։‫ޱ‬໘ʹ͓͚Δ͢ΔɽҐ૬‫ࠩޡ‬ͷप೾਺ಛੑ

4. ੒‫ܗ‬ϏʔϜ
4. 1 ੒‫ܗ‬ϏʔϜΛ์ࣹ͢ΔϦϑϨΫτΞϨʔͷઃ‫ܭ‬ैདྷ๏͓Αͼ؆қ๏ͷղੳʹ༻͍ͨઃ‫ܭ‬ύϥϝʔλΛද 1ɼͦΕʹରԠ͢Δ‫ڸ‬໘‫ܥ‬Λਤ 5 ʹࣔ͢ɽද1ਤ3ѱ͍प೾਺ಛੑྫ

3. ؆ қ ๏
3. 1 ൓ࣹҐ૬ͷप೾਺ಛੑ

ॴ๬ͷ൓ࣹҐ૬ͷઃ‫ܭ‬ύϥϝʔλઃ‫ܭ‬प೾਺ f0 [GHz]28.75༠ిମ‫ج‬൘ް t[mm]1.53༠ిମͷൺ༠ి཰ r

2.56‫ڸ‬໘ͷ܏͖ d[deg]25։‫ޱ‬໘ͷத৺ O(x,y,z)344.72ɼ0ɼ-289.26

Ϧϯά෯ w[mm]0.1Ϧϯά‫ ܘ‬r[mm](start,end,stop)

0.15ɼ1.85ɼ0.01ɹ࣮‫ݱ‬Մೳͳཧ૝ͷ൓ࣹҐ૬Λ༻͍ͨ؆қ๏Λࣔ͢ɽऩࠩཧ‫ৼڞ‬ૉࢠִؒ d[mm]4.0࿦͔Βɼ࣮‫ݱ‬Մೳͳ൓ࣹҐ૬ͷཧ࿦‫ݶ‬քΛࣜ (2) ʹද͢ɽ͜͜։‫ޱ‬໘ͷେ͖͞ D[mm]500ͰɼΦ0 ͸ॴ๬ͷ൓ࣹҐ૬ɼΦ(f ) ͸ઃ‫ܭ‬प೾਺ f0 ͔ΒͣΕͨͱҰ࣍์ࣹ‫͔ث‬Β։‫ޱ‬໘ͷத৺·Ͱͷ‫ ཭ڑ‬R[mm]450ΫϦΞϥϯε c[mm]94.72͖ͷ൓ࣹҐ૬Ͱ͋Δɻ

Φ(f ) = Φ0(2)ࣜ (2) ͔Βɼઃ‫ܭ‬प೾਺ f0 ʹ͓͚Δॴ๬ͷ൓ࣹҐ૬͔Β೚ҙͷ൓ࣹҐ૬Λ஌Δ͜ͱ͕Ͱ͖ΔͨΊɼ͜Ε·Ͱ֤ૉࢠͷ൓ࣹҐ૬Λ‫͢ࢉܭ‬ΔͨΊʹߦ͍ͬͯͨૉࢠͷઃ‫͓ܭ‬Αͼɼ֤ૉࢠͷ൓ࣹҐ૬ͷ‫͕ࢉܭ‬ෆཁʹͳΔɽΑͬͯɼ๲େͳ਺ͷૉࢠͷઃ‫͓ܭ‬Αͼ൓ࣹҐ૬ղੳʹඅ΍͍ͯͨ࣌ؒ͠ͷɼେ෯ͳ࣌ؒ୹ॖ͕ՄೳͱͳΔɽ

3. 2 ؆қ๏ͷଥ౰ੑ‫ݕ‬౼ϖϯγϧϏʔϜઃ‫ܭ‬ͷϦϑϨΫτΞϨʔʹ͓͚Δ։‫ޱ‬໘ͷҐ૬‫ࠩޡ‬प೾਺ಛੑΛਤ 4 ʹࣔ͢ɽഁઢ͸ैདྷ๏ɼ࣮ઢ͸؆қ๏ਤ5‫ڸ‬໘‫ܥ‬ͷઃ‫ܭ‬ύϥϝʔλΛ༻͍ͯղੳͨ͠Ґ૬‫ࠩޡ‬Λ͍ࣔͯ͠Δɽ͜͜Ͱઃ‫ܭ‬प೾਺ F0
͸ 12.0GHzɼ։‫ ܘޱ‬D ͸ 1000mm Ͱ͋Δɽਤ 4 ΑΓɼैདྷ๏ධՁؔ਺ F ʹ༻͍֤ͨύϥϝʔλΛද 2ɼ2.1 અͷํ๏Ͱܾఆ

͸ղੳ஋ʹϦοϓϧ͕‫ݟ‬ΒΕΔɽҰํ؆қ๏Ͱ͸ɼϦοϓϧͷͨ͠ධՁ఺͓Αͼཁ‫ٻ‬རಘΛਤ 6 ʹࣔ͢ɽ੒‫ܗ‬ϏʔϜ͸‫ܗ‬ঢ়͕ͳ͍άϥϑͱͳΔɽ͔͠͠ɼैདྷ๏͓Αͼ؆қ๏ʹ͓͚ΔҐ૬ෳࡶͰ͋ΔͨΊɼධՁ఺ʹରԠ͢Δཁ‫ٻ‬རಘ͕ 2 ௨Γଘࡏ͢Δɽ‫ࠩޡ‬ͷप೾਺ಛੑͷ܏޲͸֓ͶҰக͍ͯ͠Δ͜ͱ͔Βɼ์ࣹύ

- 169 -—3—ਤ9ਤ6ද2ैདྷ๏͓Αͼ؆қ๏Ͱͷ 30.0GHz ์ࣹύλʔϯධՁ఺ p ͓Αͼཁ‫ٻ‬རಘॴ๬ͷ൓ࣹҐ૬ͷઃ‫ܭ‬ύϥϝʔλઃ‫ܭ‬प೾਺ f0 [GHz]28.75ධՁ఺ͷ‫ ਺ݸ‬P[‫]ݸ‬6ཁ‫ٻ‬རಘ G0 [dBi]35ɼ28རಘͷॏΈ

1ɼ54. 2 ैདྷ๏͓Αͼ؆қ๏ͷൺֱैདྷ๏͓Αͼ؆қ๏Ͱղੳͨ͠ॴ๬ͷ൓ࣹҐ૬ͷप೾਺ಛੑ
Λਤ 7ɼਤ 8ɼਤ 9 ʹࣔ͢ɽ͜ΕΑΓɼ؆қ๏ͷ݁Ռʹ͓͍ͯઃ‫ܭ‬प೾਺ 28.75GHz ͷϏʔϜ͸ɼ࠷খप೾਺ 27.5GHz ͓Αͼ࠷େप೾਺ 30.0GHz ʹ͓͍ͯ΋‫ܗ‬ঢ়Λอ͍ͬͯΔɽ͞Βʹɼैདྷ๏ͱ؆қ๏ͷղੳ݁ՌΛൺֱ͢Δͱɼ͢΂ͯͷप೾਺ʹ͓

ਤ 10ैདྷ๏͓Αͼ؆қ๏ʹ͓͚Δ֤ධՁ఺ͷརಘͷप೾਺ಛੑ

͍ͯϏʔϜ‫ܗ‬ঢ়͸֓ͶҰக͍ͯ͠Δɽ
ɹղੳ݁ՌΛ༻͍ͯɼ֤ධՁ఺ʹ͓͚ΔརಘΛάϥϑʹදͨ͠

5. ݁΋ͷΛਤ 10 ʹࣔ͢ɽ֤ධՁ఺ͷ൪߸͸ਤ 6 ͷ֤൪߸ͱରԠ͠

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͍ͯΔɽਤ 10 Ͱ͸ɼഁઢ͕ैདྷ๏ɼ࣮ઢ͕؆қ๏ͱ͢Δɽશ

ຊใࠂͰ͸ɼ੒‫ܗ‬ϏʔϜʹ͓͍ͯैདྷ๏͔Βૉࢠઃ‫͓ܭ‬Αͼͯͷ஍఺Ͱैདྷ๏͓Αͼ؆қ๏ʹ͓͚Δརಘͷࠩ͸ ±1dB ͱগ൓ࣹҐ૬ͷप೾਺ಛੑͷղੳΛল͍ͨ؆қ๏͕༗ޮͰ͋Δ͜ͱͳ͘ɼैདྷ๏͓Αͼ؆қ๏ͰಘΒΕΔརಘ͸΄΅Ұக͓ͯ͠ΓɼΛ໌Β͔ʹͨ͠ɽऩࠩཧ࿦Λద༻͠ɼॴ๬ͷ൓ࣹҐ૬ΑΓप೾؆қ๏͸੒‫ܗ‬ϏʔϜઃ‫͍͓ͯʹܭ‬༗ޮੑ͕͋Δ͜ͱ͕Θ͔Δɽ਺ಛੑΛධՁͰ͖Δ͜ͱ͕൑໌ͨ͠ɽ͜ΕʹΑΓɼैདྷ๏Ͱඞཁͩͬͨૉࢠઃ‫͓ܭ‬Αͼ൓ࣹҐ૬ͷղੳ͕ෆཁͱͳΓɼप೾਺ಛੑͷධՁʹ͓͚Δେ෯ͳ࣌ؒ୹ॖ͕࣮‫͖Ͱݱ‬Δ͜ͱΛࣔͨ͠ɽจਤ7ैདྷ๏͓Αͼ؆қ๏Ͱͷ 27.5GHz ์ࣹύλʔϯਤ8ैདྷ๏͓Αͼ؆қ๏Ͱͷ 28.75GHz ์ࣹύλʔϯ‫ݙ‬[1] J.HuangɼJ.A.EncinarɼʠReectarray antennasʡ
ɼWileyɼNewJerseyɼ2007ɽ
[2] S. Makino. et al.,ʠEstimation of Frequency Characteristicsof Reect-array by Introducing Aberration Theory,ʡEUCAP,
Paris, France, March 2017.
[3] ‫ۏ‬Ӝ Ѯɼ஛ౡ ݈ඈɼ຀໺ ࣎ɼ୍઒ಓੜɼதౡ ޺ণɼʠϦϑϨΫτΞϨʔͷप೾਺ಛੑʹ͓͚ΔκʔχϯάͷӨ‫ڹ‬ʡ৴ֶ૯େɼ
B-1-49ɼ2018ɽ
[4] ‫ۏ‬Ӝ Ѯɼ຀໺ ࣎ɼ஛ౡ ݈ඈɼ ਢӬ ٝɼ୍઒ಓੜɼதౡ ޺ণɼʠϦϑϨΫτΞϨʔΞϯςφͷκʔχϯάʹ͓͚ΔҐ૬‫ࠩޡ‬ͷप೾਺ಛੑ΁ͷӨ‫ڹ‬ʡ৴ֶٕใɼIEICE-AP2018-42ɼ
[5] ਢӬٝɼ஛ౡ݈ඈɼ຀໺࣎ɼԘग़߶࢜ɼ୍઒ಓੜ.,ʠऩࠩཧ࿦Λ༻͍ͨϦϑϨΫτΞϨʔΞϯςφͷϚϧνϏʔϜઃ‫ܭ‬๏ʡ৴ֶ૯ମ, B-1-63, 2017. pp1-5ɼ2018ɽ- 170 -—4—