Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Patent
1996-03-26
1997-05-27
Gensler, Paul
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
333 1, 333112, 333116, 333118, 333120, 333128, 333238, H04B 126, H01P 308, H01P 512, H01P 516
Patent
active
056342080
ABSTRACT:
A hybrid including a substrate, a first dielectric layer, a ground metal, and a second dielectric layer, which are stacked in this order. Transmission lines are formed below and above the ground metal, and a slit is formed in the ground metal at a position corresponding to projection of the transmission lines onto the ground metal. The substrate has a greater dielectric constant than the dielectric layers. This makes it possible to prevent coupling between the upper and lower transmission lines, thereby implementing a high impedance, low loss transmission lines.
REFERENCES:
patent: 3575674 (1971-04-01), Howe, Jr.
patent: 3659228 (1972-04-01), Napoli
patent: 3715689 (1973-02-01), Laughlin
patent: 3771075 (1973-11-01), Phelan
patent: 5303419 (1994-04-01), Ittipiboon et al.
patent: 5446425 (1995-08-01), Banba
"Multilayer MMIC Branch-Line Coupler and Broad-Side Coupler", Toyoda et al, NTT Radio Communication Systems Laboratories, IEEE 1992 Microwave and Millimeter-Wave Monolithic Circuits Symposium, pp. 79-82.
"Slot-Coupled Directional Couplers Between Double-Sided Substrate Microstrip Lines and Their Applications", Tanaka et al, IEEE Transactions on Microwave Theory Techniques, vol. 36, No. 12, Dec. 1988, pp. 1752-1757.
"Three-Dimensional MMIC Technology: A Possible Solution to Masterslice MMIC's on GaAs and Si", Tokumitsu et al, IEEE Microwave and Guided Wave Letters, vol. 5, No. 11, Nov. 1995, pp. 411-413.
"A Novel Minature Wilkinson Divider Using Aperture-Ground Plane and Application to 3D-MMIC K-band Receiver" Nishikawa et al, The Institute of Electronics, Information and Communication Engineers, Technical Report of IEICE, MW95-69(1995-07), pp. 77-82.
"Reduced-Size Branch-Line and Rat-Race Hybrids for Uni-planer MMIC's", Hirota et al, IEEE Transactions on Microwave Theory and Techniques, vol. 38, No. 3, Mar. 1990, pp. 271-275.
"Reduction of the attenuation constant of microstrip", I. J. Albrey, et al., IEEE Transactions on Microwave Theory and Techniques, vol. 22, No. 7, Jul. 1974, pp. 739-742.
Kamogawa Kenji
Nishikawa Kenjiro
Tokumitsu Tsuneo
Toyoda Ichihiko
Gensler Paul
Nippon Telegraph and Telephone Corporation
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