抑制和諧波之共面波導饋入槽口型天線

harmonic suppressed CPW-fed slot dipole antenna

田育名(Yu-Ming Tain)

指導教授 ： 許博文

國立臺灣大學/電機資訊學院/電信工程學研究所/碩士(2011年)

https://doi.org/10.6342/NTU.2011.02042

摘要

本論文提出了一種讓槽孔型天線有著抑制和諧波效果的方法。這個方法是利用在槽孔內嵌入L-型金屬殘段以形成寬頻的帶止共振器。
　　本論文所提出的抑制和諧波之槽孔型天線，其在基頻時的表現與一般槽口型天線並無太大的差異。但至少可以抑制到第三和諧波。相較於其他抑制和諧波的方法，此方法非但沒有插入損失的問題，而且天線外型沒有改變，同時還具有天線設計較為精簡，低成本等優勢。
共面波導饋入的槽口型天線，大致上可分為電容性耦合饋入與電感性耦合饋入兩種饋入方式，兩種饋入方式皆可運用此方法來達到抑制和諧波的效果。

關鍵字

抑制和諧波 ； 槽口型天線 ； 共面波導

並列摘要

A method for suppressing the harmonic of a coplanar waveguide (CPW)-fed slot antenna is presented. The suppression is achieved by inserting a pair of inverted-L shaped metal stub in the slot near the feeding CPW, which forms a wide-band band-stop resonator.
The performances of the proposed antenna are similar to those of the reference an-tenna (the slot antenna without the L-shaped stubs) at the fundamental frequency. Har-monics are suppressed at least to the third harmonic frequency. Compared with the other harmonic suppression methods, the proposed design not only has good insertion loss, kept the antenna shape, low cost, but also being easier to fabricate.
Both of the capacitive and inductive feeding CPW-fed slot antenna can achieve the harmonic suppression by the proposed method.

並列關鍵字

harmonic suppression ； slot dipole antennas ； CPW-fed antennas

參考文獻

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