Development of computer programs for component analysis and design aids used in production of microstrip components is discussed. System includes designs for couplers, filters, circulators, transformers, power splitters, diode switches, and attenuators

Cisco, T. C.

English

NASA Technical Reports Server

December 1972	 B72-10741 
NASA TECH BRIEF 
Langley Research Center
	 -4r 
NASA Tech Briefs announce new technology derived from the U.S. space program. They are issued to encourage 
commercial application. Tech Briefs are available on a subscription basis from the National Technical Information 
Service, Springfield, Virginia 22151. Requests for individual copies or questions relating to the Tech Brief program may 
be directed to the Technology Utilization Office, NASA, Code KT, Washington, D.C. 20546. 
Design of Microstrip Components by Computer 
0
The problem: 
To synthesize and design microstrip components with 
a computer. 
The solution: 
The task was accomplished by developing a system 
of programs that would handle the necessary types of 
component design problems. 
How it's done: 
The system is essentially divided into two areas: 
component analysis and design aids. The microstrip 
analysis was divided into single strip components, 
including low pass filters, lumped high pass filters, 
microstrip stopband filters, stepped impedance trans-
formers, hybrid rings and finite circulators, and coupled 
microstrip lines, including end and parallel coupled 
bandpass filters, microstrip directional couplers, and 
hybrid T synthesis. The design aids include Chebyshev 
response, Spurious Intermodulation Products, analysis/ 
optimization, diode characteristics and analysis, input/ 
output and idler circuits, and microstrip triplers. 
This system presents a number of computer programs 
used in the synthesis of microwave components with 
microstrip geometries. The programs accept component 
design requirements in terms of ordinary engineering 
data and, in return, compute the parameters needed to 
synthesize the component, either in terms of actual
physical dimensions or in terms of parameters, which 
can be reduced to physical dimensions through the use 
of other analysis or synthesis programs. 
The system includes designs for couplers, filters, 
circulators, transformers, power splitters, diode switches, 
multipliers, diode phase shifters, and attenuators. Addi-
tional programs are included to analyze and optimize 
cascades of lumped elements and transmission line 
elements, to analyze and synthesize Chebyshev and 
Butterworth filter prototypes, and to compute mixer 
intermodulation products. 
Notes: 
1. This program was written in FORTRAN IV for use 
on a CDC-6600 computer. 
2. Inquiries concerning this program should be directed 
to:
COSMIC 
112 Barrow Hall 
University of Georgia 
Athens, Georgia 30601 
Reference: LAR-1 1210 
Source: Terry C. Cisco of 
CAED Corporation
under contract to
Langley Research Center 
(LAR-1 1210) 
Category 01,09 
This document was prepared under the sponsorship of the National 	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States 	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States 	 will be free from privately owned rights.
https://ntrs.nasa.gov/search.jsp?R=19720000740 2020-03-17T03:43:58+00:00Z


Design of microstrip components by computer

A number of computer programs are presented for use in the synthesis of microwave components in microstrip geometries. The programs compute the electrical and dimensional parameters required to synthesize couplers, filters, circulators, transformers, power splitters, diode switches, multipliers, diode attenuators and phase shifters. Additional programs are included to analyze and optimize cascaded transmission lines and lumped element networks, to analyze and synthesize Chebyshev and Butterworth filter prototypes, and to compute mixer intermodulation products. The programs are written in FORTRAN and the emphasis of the study is placed on the use of these programs and not on the theoretical aspects of the structures

Design of microstrip components by computer

Abstract

Similar works

Full text

Available Versions

NASA Technical Reports Server

NASA Technical Reports Server