传输线之Quarter-Wave Transformer
传输线之Quarter-Wave Transformer

2013-5-4 07:37 今日头条 433 0

We are now aware of the fundamental properties of transmission lines, which are very important in electronics and antenna theory for microwave frequencies (anyt ...
传输线之Input Impedance
传输线之Input Impedance

2013-5-4 07:36 今日头条 328 0

We are now ready to determine the input impedance of a transmission line of length L attached to a load (antenna) with impedance ZA. Consider the following circ ...
传输线之Reflection Coefficient and VSWR
传输线之Reflection Coefficient and VSWR

2013-5-4 07:35 今日头条 318 0

We are now aware of the characteristic impedance of a transmission line, and that the tx line gives rise to forward and backward travelling voltage and current ...
传输线之Models and Characteristic Impedance
传输线之Models and Characteristic Impedance

2013-5-4 07:34 今日头条 232 0

In this section, we'll form a model for transmission lines and then analyze the equations that govern their behaviour. We'll then introduce the key property of ...
天线之传输线
天线之传输线

2013-5-4 07:32 今日头条 340 0

Introduction to Transmission Lines Transmission Lines - Models and Characteristic Impedance Reflection Coefficient and VSWR Input Impedance of Tx Lines Quart ...
smith圆图之Dual-Band Impedance Matching
smith圆图之Dual-Band Impedance Matching

2013-5-4 07:29 今日头条 294 0

Dual-band impedance matching is introduced on this page via an example. Analyzing an actual antenna response on the Smith Chart (froma network analyzer) is also ...
smith圆图之Immittance Charts: More Impedance Matching
smith圆图之Immittance Charts: More Impedance Matching

2013-5-4 07:27 今日头条 322 0

On the previous page, the immittance Smith Chart was introduced. On this page, we'll look at more impedance matching examples to illustrate the usefulness of th ...
smith圆图之Immittance Smith Chart - Matching without Tx Lines
smith圆图之Immittance Smith Chart - Matching without Tx Lines

2013-5-4 07:26 今日头条 388 0

We've introduced matching with transmission line sections and either series components or parallel components (inductors and capacitors). We should have noticed ...
smith圆图之Impedance Matching with Parallel Tx Line Stubs
smith圆图之Impedance Matching with Parallel Tx Line Stubs

2013-5-4 07:25 今日头条 538 0

On the previous page we introduced impedance matching with parallel inductors and capacitors. On this page, we'll illustrate how transmission lines can be place ...
smith圆图之Impedance Matching with Parallel L and C
smith圆图之Impedance Matching with Parallel L and C

2013-5-4 07:24 今日头条 240 0

Just as the standard "impedance" Smith Chart made working with series inductors and capcitors easy, the admittance Smith Chart will make working with parallel i ...
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