By Rainee N. Simons
It will be the 1st publication committed fullyyt to the speculation and purposes of coplanar waveguides, that are turning into vital as a substitute to the extra universal stripline and microstripline waveguides. * writer is stated professional with various guides during this quarter. * First booklet dedicated totally to the speculation and functions of coplanar waveguides. * vital purposes in telecommunications.
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Additional info for Coplanar waveguide circuits, components, and systems
4, pp. 138—139, April 1992. Coplanar Waveguide Circuits, Components, and Systems. Rainee N. Simons Copyright 2001 by John Wiley & Sons, Inc. 1 INTRODUCTION The coplanar waveguide (CPW) proposed by C. P. Wen in 1969 consisted of a dielectric substrate with conductors on the top surface . The conductors formed a center strip separated by a narrow gap from two ground planes on either side. The dimensions of the center strip, the gap, the thickness and permittivity of the dielectric substrate determined the effective dielectric constant ( ), characteristic impedance (Z ) and the attenuation ( ) of the line.
2 Conﬁguration for partial capacitances for a CPW sandwiched between two dielectric substrates: (a) C ; (b) C ; (c) C . 2) where the modulus of the complete elliptic integrals K(k ) and K(k ) are  sinh( S/4h ) k : sinh+[ (S ; 2W )]/4h , k : (1 9 k . 5) where sinh( S/4h ) k : , sinh+[ (S ; 2W )]/4h , k : (1 9 k . 8) where tanh( S/4h ) k : , tanh+[ (S ; 2W )]/4h , tanh( S/4h ) k : , tanh+[ (S ; 2W )]/4h , k : (1 9 k , k : (1 9 k . 12) Calculation of Effective Dielectric Constant ( eff ), Phase Velocity (vph), and Characteristic Impedance (Z0 ) Substituting Eqs.
7. In this case, : 1 and h : -. 6 Computed characteristics of CPW as a function of S/(S;2W ), with the normalized substrate h /b as a parameter, : 10: (a) Effective dielectric constant; (b) characteristic impedance. 40) where k , k , and k are given by Eqs. 10), respectively: 60 Z : ( · 1 . [K(k )/K(k )] ; [K(k )/K(k )] There equations are identical to those in . 59 1992 IEEE. 7 Schematic of a CPW on a dielectric substrate of ﬁnite thickness and with a top metal cover.
Coplanar waveguide circuits, components, and systems by Rainee N. Simons