L*******y 发帖数: 231 | 1 贡献一下经历,希望对后来人有帮。
昨天和skywork 的人 phone screen 了一把。他们两个人,从iowa打来。开头主要问现
在在做什么,谈谈phD的课题,用过什么设备,仿真软件的应用(ADS's harmonic
balance and Momentum).之后他们有问了一些基本概念,我尽量列出来:
1. Q:A FET in common souce, the voltage on load is in phase or out of phase
of input signal?
A: out of phase.
Q: How many degree?
2. where is 0Ohm, 50Ohm, 25Ohm on smith chart.
3. How to match from 25 Ohm to 100 Ohm with inductor and capacitor
4. How to match from 25 Ohm to 100 Ohm with a piece of transmission line.
5. The advantage of Clas | R*****o 发帖数: 204 | 2 average
phase
【在 L*******y 的大作中提到】 : 贡献一下经历,希望对后来人有帮。 : 昨天和skywork 的人 phone screen 了一把。他们两个人,从iowa打来。开头主要问现 : 在在做什么,谈谈phD的课题,用过什么设备,仿真软件的应用(ADS's harmonic : balance and Momentum).之后他们有问了一些基本概念,我尽量列出来: : 1. Q:A FET in common souce, the voltage on load is in phase or out of phase : of input signal? : A: out of phase. : Q: How many degree? : 2. where is 0Ohm, 50Ohm, 25Ohm on smith chart. : 3. How to match from 25 Ohm to 100 Ohm with inductor and capacitor
| g*k 发帖数: 194 | 3 这个design center 主要作PA的,搂主是什么专业? MMIC or RFIC?
phase
【在 L*******y 的大作中提到】 : 贡献一下经历,希望对后来人有帮。 : 昨天和skywork 的人 phone screen 了一把。他们两个人,从iowa打来。开头主要问现 : 在在做什么,谈谈phD的课题,用过什么设备,仿真软件的应用(ADS's harmonic : balance and Momentum).之后他们有问了一些基本概念,我尽量列出来: : 1. Q:A FET in common souce, the voltage on load is in phase or out of phase : of input signal? : A: out of phase. : Q: How many degree? : 2. where is 0Ohm, 50Ohm, 25Ohm on smith chart. : 3. How to match from 25 Ohm to 100 Ohm with inductor and capacitor
| w********e 发帖数: 385 | 4 narrow the span, lower the resolution bandwidth (assuming you know where the
signal is) also i think there is 10 dB attn built into spectrum analyzer,
you can manually change it to zero, but then you are risking blowing up the
sa if a large amount of rf power comes in.
thanks for sharing.
phase
【在 L*******y 的大作中提到】 : 贡献一下经历,希望对后来人有帮。 : 昨天和skywork 的人 phone screen 了一把。他们两个人,从iowa打来。开头主要问现 : 在在做什么,谈谈phD的课题,用过什么设备,仿真软件的应用(ADS's harmonic : balance and Momentum).之后他们有问了一些基本概念,我尽量列出来: : 1. Q:A FET in common souce, the voltage on load is in phase or out of phase : of input signal? : A: out of phase. : Q: How many degree? : 2. where is 0Ohm, 50Ohm, 25Ohm on smith chart. : 3. How to match from 25 Ohm to 100 Ohm with inductor and capacitor
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