Nonlinear harmonic modeling of phemt devices for increased power amplifier efficiencies /
= 20 mA, Vd, = 3 V) and operated at a frequency of 2.2 GHz.
| Main Author: | |
|---|---|
| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1997.
|
| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | = 20 mA, Vd, = 3 V) and operated at a frequency of 2.2 GHz. acquisition. This study shows that when harmonic termination advantages and disadvantages of each. amplifier is biased in the low noise region of operation (L, An attempt is made to generate a working model which be done by simulation without the cumbersome task of taking characterizes the amplifier's performance with and without Class A and Class B operation in order to show the compared in order to verify the model's performance. Once a depending upon the operating conditions of the device. This devices such as cellular phones and reduce the size of these efficiency (PAE). To show this improvement, the PHEMT electronic load pull system which is capable of rapid data for space applications where replacement of power supplies is harmonic termination. Both measured and modeled data are improved PA-E can result in longer operational lifetimes of intermodulation distortion measurements are also done for is used, the PAE can improve in some cases by about 15 % measurements. The measured data is obtained using an terminations can greatly increase a power amplifier's This thesis is a comprehensive study of how harmonic units. Longer lifetimes are extremely important especially very costly. Power measurements as well as relevant working model is realized, the designing of an amplifier can |
|---|---|
| Item Description: | "Major subject: Electrical Engineering". Vita. |
| Physical Description: | xviii,157 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 120-122. |