以並聯饋入線產生雙頻圓極化天線

PARALLEL APERTURE-COUPLED DUAL-BAND CIRCULARLY POLARIZED ANTENNA

黃建雄(Chien-Hsiung Huang)

指導教授 ： 張知難

大同大學/電機資訊學院/通訊工程研究所/碩士(2011年)

摘要

本篇論文提出一種利用並聯饋入線通過菱形槽孔藉此耦合到環形金屬貼片和十字槽孔耦合到矩形貼片來產生雙頻圓極化波的獨特設計，而饋入線的結構是由兩個傳輸線並聯而成，該結構可以很容易操作在RFID(0.902GHz~0.928GHz和2.4GHz~2.5GHz)的雙頻圓形極化天線，此天線模擬與量測的結果都明顯說明此天線有很好的圓極化輻射特性。

關鍵字

射頻辨識系統 ； 圓形極化天線

並列摘要

This thesis presents a parallel feed line which couples diamond-shaped slot to ring and cross-slot to patch. The feed line is used to feed the two parts in parallel. Then, the structure can easily be operated as a dual-band circularly polarized antenna to cover both (0.902GHz~0.928GHz and 2.4GHz~2.5GHz) bands. Simulated and measured results indicate that the proposed antenna can achieve good circularly polarized radiation performance.

並列關鍵字

circularly polarized antenna ； RFID

參考文獻

[3] H. G. Booker, “Slot aerials and their relation to complementary wire aerials,” J. IEE(London), part3A, vol.93, pp.620-626, May 1946.

[4] D. M. Pozar, “A reciprocity method of analysis for printed slot and slot-coupled micro strip antennas,” IEEE Trans. Antenna Propag., vol.34, no.12, pp.1439-1446, December 1986.

[5] M. Kahrizi, T. K. Sarkar and Z. A. Maricevic, “Analysis of a wide radiating slot in the ground plane of a microstrip line,” IEEE Trans. Microwave Theory Tech., vol.41, pp.29-37, January 1993.

[6] E. Aloni and R. Kastner, “Analysis of a dual circularly polarized microstrip antenna fed by crossed slots,” IEEE Trans. Antenna Propag., vol.42, no.8, pp.1053-1058, August 1986.

[7] H. Kim, B. M. Lee and Y. J. Yoon, “A single-feeding circularly polarized microstrip antenna with the effect of hybrid feeding,” IEEE Antennas and Wireless Propagation Letters, vol.2, pp.74-77, July 2003.