The present invention provides a coupled feeding multi-band antenna and a coupled feeding multi-band circularly-polarized spiral antenna. The coupled feeding multi-band antenna includes multiple multi-band antenna groups, where each multi-band antenna group forms a multi-band co-feeding antenna with a grounding branch through a coupled feed-in electrode, the coupled feed-in electrode is arranged on one surface of a substrate portion, and the grounding branch is arranged on the other surface of the substrate portion. In this way, a broadband coupled feeding multi-band antenna that meets requirements of people is produced, which not only improves channel capacity and anti-interference ability of an antenna communication system, but also overcomes design difficulties of a feeding network and a feeding structure, achieving good impedance matching and circularly-polarized radiation performance. Furthermore, a small-sized coupled feeding multi-band antenna is achieved, and besides, miniaturization of broadband circular polarization is achieved.
- 출원번호 : 18648436
- 출원인 : Inpaq Technology (Suzhou) Co., Ltd
- 특허번호 :
- IPC : H01Q-005/50(2006.01);H01Q-001/38(2006.01);H01Q-015/24(2006.01);