Showing papers on "Coplanar waveguide published in 1975"
TL;DR: In this paper, a frequency-dependent hybrid-mode analysis of single and coupled slots and coplanar strips is presented, where the dispersion characteristic and characteristic impedance of the structures are obtained by applying a Fourier transform technique and evaluating the resulting expressions numerically using the method of moments.
Abstract: A frequency-dependent hybrid-mode analysis of single and coupled slots and coplanar strips is presented. The dispersion characteristic and characteristic impedance of the structures are obtained by applying a Fourier transform technique and evaluating the resulting expressions numerically using the method of moments. Numerical results are presented and compared with results published by other investigators. The experimental performance of a slot-line coupler is compared with predicted performance based upon the results presented here for coupled slots. Excellent agreement has been obtained in all cases.
264 citations
Patent•
30 Jun 1975
TL;DR: In this paper, the authors proposed a receiver module including a mode launcher, a band pass filter, a local oscillator and a balanced mixer for use in the frequency range 1 GHz to 1,000 GHz, wherein the components are all connected by an insular waveguide transmission line having a conductive image plane, a dielectric waveguide attached to the image plane by a thin film of plastic.
Abstract: A receiver module including a mode launcher, a band pass filter, a local oscillator and a balanced mixer for use in the frequency range 1 GHz to 1,000 GHz, wherein the components are all connected by an insular waveguide transmission line having a conductive image plane, a dielectric waveguide attached to the image plane by a thin film of plastic, the thin film being low loss in character and having a low permittivity compared with that of the dielectric waveguide, the ratio between the thickness of the thin film and the square root of the cross-sectional area of the dielectric waveguide being in the range from about 0.02 to about 1.0.; there also are disclosed signal processing components made of insular waveguide transmission lines including a directional coupler, a symmetrical quadrature hybrid coupler, and a ring resonator filter that can be used as a band rejection or band pass filter either with a single pole or multiple pole, as well as mode launchers for connecting the insular waveguide transmission line to a metal waveguide and a coaxial line.
32 citations
Book•
01 Apr 1975
TL;DR: In this article, the authors proposed the Microwave integrated circuits (MIIC) architecture for microwave integrated circuits, which is based on the microwave integrated circuit (MIMIC).
Abstract: Microwave integrated circuits , Microwave integrated circuits , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی
24 citations
01 Oct 1975
TL;DR: In this paper, the design and performance of a MIC 26.5-40 GHz mixer is described, which utilizes GaAs beam lead Schottky barrier diodes with a cutoff frequency of 750 GHz in a balanced arrangement with slot-line and coplanar waveguide.
Abstract: The design and performance of a MIC 26.5-40 GHz mixer is described. The mixer utilizes GaAs beam lead Schottky barrier diodes with a cutoff frequency of 750 GHz in a balanced arrangement with slot-line and coplanar waveguide. Conversion loss for the full waveguide band is 7.6 ± 0.5 dB with + 6 dBm LO drive. VSWRs are less than 2:1 for the RF port and 3.4:1 for the LO port. The mixer exhibits excellent LO to RF isolation, typically 25 dB and handles IF frequencies up to 8 GHz.
20 citations