本帖最后由 andrew_0056 于 2010-12-13 20:46 编辑
非常奇怪学校IEEE数据库上搜到这篇文献，下载下来说不是一个PDF格式的文件，第一次碰到，哪位兄弟帮忙下一下，谢谢了。
求 Exact Design of TEM Microwave Networks Using Quarter-Wave Lines
Wenzel, R.J.
This paper appears in: Microwave Theory and Techniques, IEEE Transactions on
Issue Date : Jan 1964
Volume : 12 ,
Issue:1
On page(s): 94 - 111
ISSN : 0018-9480
Digital Object Identifier : 10.1109/TMTT.1964.1125757
Date of Current Version : 06 一月 2003
Sponsored by : IEEE Microwave Theory and Techniques Society
AbstractModem network theory procedures, based on Ozaki-Ishii synthesis techniques, are reviewed for application in the design of TEM mode microwave networks using parallel coupled bars and/or series and shunt stubs. The circuit equivalences and identities obtained are theoretically valid over the entire frequency spectrum and lead to several physical configurations having identical response functions. These equivalent circuits often allow simplification of the physicrd circuitry and realization of both broad and narrow bandwidths. The problem of practical circuit configurations is discussed from the viewpoint of bandwidth and circuit element values. Neglecting multiple responses, TEM low-pass, high-pass and band-pass butterworth filters are shown to offer steeper bandedge characteristics than those of corresponding lumped element filters. The use of complementary filters to match a source and load over a wide frequency range is outlined and TEM realizations of these complements are obtained. A simple procedure for obtaining element values of butterworth complements is described. An analysis of parallel coupled filters is made and a simplified equivalent circuit is obtained. An exact synthesis procedure for parallel coupled bar filters and their equivalent forms is given. Construction details and experimental results are described for two filters which use series stubs.
求文献：Exact Design of TEM Microwave Networks Using Quarter-Wave Lines: Exact Design of TEM Microwave Networks Using Quarter-Wave Lines.PDF
