Voltage variable microwave phase shifter

Determination of the Green's function in the spectral domain using a matrix method: Application to radiators or resonators immersed in a complex anisotropic layered medium

“…Such an approach has been applied to the case of slow wave propagation in a layered monolithic GaAs microstrip structure which displays voltage variable phase shift between DC and 18 GHz. The monolithic device was designed with micron dimensions in order to operate up to 150 GHz in a fundamental mode of propagation [17], [18]. For layers which are narrow and lead to separation and discretation of carrier energy levels in the transverse or ydirection, this two-dimensional effect may play a noticeable role in altering the scattering behavior through change of carrier quantum mechanical wavefunctions qC.…”

Quasi-static conductor loss calculations in transmission lines using a new conformal mapping technique

“…2b). For the n th (n = 0, 1, 2, ..., N-1) section the effective thickness h n is given by (27) and the width w n at the surface by…”

“…For the experimental results, attenuation and effective refractive index (n eff = β/β o ) were extracted from the S-parameters measured using an HP 8510B Network Analyzer. Excellent agreement C : attenuation constant using the incremental inductance rule [27]; G : attenuation constant using the integral over high frequency surface current density [3] .…”

A Novel Type Phase Shifter Using Rat Race Hybrid

“…Cheah, Y. C., Paoloni, F. J. proposed a variable attenuators and phase shifters also using PIN diodes in 1984 [4]. Neidert, R. E., Krowne, C. M. in 1985 proposed a voltage-controlled phase shifter [5]. Lian, C., Rosenau, S. A., Zhang, W. K., Chang, C. C., Domier, C. W. and Luhmann, N. C. used lumped element in phase shifter design in 2000 [6].…”