發明
日本
特願 2011-254784
特許 5559762
印刷式濾波天線PRINTED FILTERING ANTENNA
國立交通大學
2014/06/13
本申請案提出具有較高頻帶邊緣天線增益選擇性的小型化印刷式濾波天線。在使用與傳統天線相同電路面積的情況下,所提出的架構不僅是一個輻射體,亦是一個二階帶通濾波器,其中兩個傳輸極點分別由天線與所發明的耦合線共振器來提供。由於耦合線共振器在頻帶邊緣可產生兩個額外的傳輸零點,因此可達到較高的頻帶邊緣選擇。為了縮小所要求的電路面積,提出由微帶線與共平面波導結構所組成的耦合線共振器,兩者電路透過側邊耦合的方式來耦合能量,並將耦合線共振器嵌入於天線的電路面積內。因此,在幾乎不增加天線額外的電路面積的情況下,所發明之印刷式濾波天線可達到面積小型化之設計。 In the application form, a compact printed filtering antenna with high band-edge gain selectivity is presented. Occupying about the same substrate area as a conventional antenna, the proposed structure not only serves as a radiator but also a second-order bandpass filter, with one filter pole provided by an antenna and the other by a newly proposed coupled line resonator. High band-edge selectivity is achieved due to two additional stop-band transmission zeros provided by the coupled line resonator. To minimize the required area, a coupled line structure composed of a microstrip line and a coplanar waveguide by broadside coupling is adopted and intruded into the antenna circuit area. Therefore, the invented printed filtering antenna is the compact design while the total circuit area of the antenna has almost not be increased.
本部(收文號1100065219)同意該校110年10月27日陽明交大研產學字第1100036963號函申請終止維護專利(陽明交大)
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