Ka頻段平面次諧波混頻器之設計

Abstract

本論文目的設計一混頻器提供給予LMDS系統使用，製作於Ka頻段；由於系統規劃，決定採取次諧波混頻器的架構。基於隔離度自然形成、單平面製作、和與基頻混頻器有區隔的原則下，將在論文中完整整理可用於次諧波混頻器的架構，並稍加評斷其優劣，以供設計前的參考。 另外由於製程上的考量，我們將實作三個可單平面實現的次諧波混頻器，包括單端次諧波混頻器、單平面次諧波混頻器、單平衡次諧波混頻器，並對三個結構的性能作比較。

This article is to design a mixer at Ka-band to provide the LMDS system. As our planning, we decided to use the sub-harmonically mixers structure. Since sub-harmonically mixer has the characters of naturally forming isolation, uni-planar fabrication, and different to fundamental mixer and we’ll completely collect the structures of the sub-harmonically mixers and detail the benefit of them. In the other hand, consideration of the process, we will implement three uni-planar sub-harmonically mixers. That include, single-ended sub-harmonically mixer, single planar sub-harmonically mixer, single-balanced sub-harmonically mixer. At least, we’ll compare the performances of them.