Showing papers on "Coplanar waveguide published in 1975"
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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
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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
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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
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01 Oct 1975TL;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