ADS中电路转换为微带线的步骤

ADS中电路转换为微带线的步骤

1. 设计好Tline

2. Tools — LineCalc — Start LineCalc 用这个东东计算MLine各种参数： Er: substrate dielectric constant H: subatrate height T: metallization thickness

Cond: the conductivity of the conductor layers. for copper cond=4e7 Tand: the loss tanget. for copper at 0.022 比方说用RT/Duroid做基板：

Er=2.20, H=20th or 0.508mm, T=0.1th or 2.5*10^-3 mm, cond =4.1*10^7 Rough=0, Tand= 0.0009 W: Mline宽 l: Mline长 Z0: 特性阻抗 E_Eff: 电角度

用synthesize或analyze可以方便地进行W\\l和Z0\\E的相互转换 右下角“Caculated Resaults”框中： K_eff: the effective dielectric constant A_dB: the loss of the line

3. 新建design：）， analog/rf network, 模版可选用s-params。然后从左边下拉工

具栏

选Tlines-Microstrip,用微带线元件构造电路。

MSUB： for the microstrip substrate characteristics，与LineCalc里的数据一样 Mlin: microstrip line,长宽已用LineCalc算出 MTEE: tee juction

MBEND: for microstrip line bends and mitres MLOC: for microstrip end effects

MSTEP: abrupt change in the width of the microstrip TFR: thin film resistor

4. 主菜单Layout – Generate/Update Layout