Empirical expressions for characteristic impedance of modified microstrip-like interconnections

In this work, we investigate modified microstrip structures – a microstrip line with an aperture in the ground plane below the line and a microstrip line guarded by adjacent ground tracks. Closed-form expressions are presented for the characteristic impedance of these microstrip-like interconnects....

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Bibliographic Details
Published in:International journal of electronics and communications 2010-07, Vol.64 (7), p.682-684
Main Authors: Sharma, Rohit, Chakravarty, T., Bhattacharyya, A.B.
Format: Article
Language:English
Subjects:
Characteristic impedance
Computer aided design
Electronics
Exact solutions
Finite-difference time-domain
Ground plane
Impedance
Mathematical analysis
Microstrip lines
Multichip module
Printed circuits
Simulation
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Summary:In this work, we investigate modified microstrip structures – a microstrip line with an aperture in the ground plane below the line and a microstrip line guarded by adjacent ground tracks. Closed-form expressions are presented for the characteristic impedance of these microstrip-like interconnects. The formulae given have been designed for use in PCB, MCM and MIC CAD programs. The predicted results are compared with FDTD simulations and measured data that show excellent accuracy.
ISSN:1434-8411
1618-0399
DOI:10.1016/j.aeue.2009.04.013