Patents for H01P 5 - Coupling devices of the waveguide type (11,303)
02/1990
02/20/1990US4902990 Thick film microwave coupler
02/20/1990US4902935 Method and apparatus for evening out the temperature distribution of electrodeless lamp bulbs
02/15/1990DE3926188A1 Schlitzstrahler Slot radiator
02/14/1990EP0354524A1 Plural plane waveguide coupler
02/13/1990US4901042 High frequency power divider
02/13/1990US4901041 High-performance package for monolithic microwave integrated circuits
02/13/1990US4901040 Reduced-height waveguide-to-microstrip transition
02/07/1990CN1039507A Waveguide coupling arrangement
01/1990
01/23/1990US4896124 Ceramic filter having integral phase shifting network
01/18/1990DE3925316A1 Network for microwave power distribution - has specified interrelation of quarter and half wave sections forming meshes with two parts
01/17/1990EP0151596B1 Microwave circuit device
01/16/1990US4894627 Directional waveguide-finline coupler
01/16/1990US4894625 Rectangular waveguide to circular wrapped rectangular waveguide transition
01/10/1990EP0350324A2 Waveguide coupling arrangement
01/10/1990EP0263158B1 Wideband horn antenna
01/09/1990US4893098 Four terminal broad band 0/90 degree hybrid
01/04/1990DE3920649A1 Method and device for equalising the temperature distribution of lamps for luminaires without electrodes
01/03/1990EP0349203A2 Coaxial transmission line to microstrip transmission line launcher
01/02/1990US4891614 Matching asymmetrical discontinuties in transmission lines
01/02/1990US4891612 Overlap interfaces between coplanar transmission lines which are tolerant to transverse and longitudinal misalignment
12/1989
12/28/1989DE3920628A1 Luminaire without electrodes for coupling to a small lamp
12/20/1989EP0347398A1 Connection plug for a microwave unit
12/06/1989EP0344437A1 Hybrid power divider, particularly a three-port hybrid
11/1989
11/29/1989EP0343771A1 Transmission line
11/29/1989EP0343585A1 Microwave multiplex filter
11/28/1989CA1263457A1 Arrangement for coupling hollow waveguides to a semiconductor component
11/28/1989CA1263452A1 Rotating slot antenna arrangement for microwave oven
11/21/1989US4882555 Plural plane waveguide coupler
11/21/1989US4882553 Microwave balun
11/15/1989EP0342175A2 Dual-polarized printed circuit antenna having its elements, including gridded printed circuit elements, capacitively coupled to feedlines
11/08/1989EP0340713A1 Device for the distribution of very high-speed digital signals
11/08/1989CN2047453U Changing device of teleset double (telescopic) antenna
11/07/1989US4879533 Surface mount filter with integral transmission line connection
10/1989
10/31/1989US4877971 Method and apparatus for distributing a signal
10/25/1989CN1036667A Surface mount filter with integral transmission line connection
10/18/1989EP0337196A1 Arrangement for impedance transformation
10/18/1989EP0337194A1 PI/2 power divider
10/18/1989EP0337191A1 Line transformer
10/17/1989US4875087 Integrated circuit device having strip line structure therein
10/17/1989US4875025 Microstrip transmission line for coupling to a dielectric resonator
10/17/1989US4875024 Low loss power splitter
10/11/1989EP0336339A1 Phase-shifting combiner for electromagnetic waves
10/11/1989EP0336255A1 Surface mount filter with integral transmission line connection
10/05/1989WO1989009498A1 Surface mount filter with integral transmission line connection
10/04/1989EP0335788A1 Microwave phase shifter
10/03/1989US4871988 Microwave transmission line of the symmetrical type and with two coplanar conductors
10/03/1989US4871950 Wide band device for coupling between the delay line of a travelling wave tube and the external circuit transmitting the energy of the tube
09/1989
09/27/1989EP0334270A1 Microwave matching arrangement for a waveguide-to-planar line transition
09/26/1989US4870375 Disconnectable microstrip to stripline transition
09/26/1989CA1260084A1 Microwave phase trimmer
09/20/1989EP0333568A1 Multi-way combiner/divider
09/20/1989EP0333247A1 Power divider for a HF signal
09/19/1989US4867704 Fixture for coupling coaxial connectors to stripline circuits
09/12/1989CA1259401A1 Composite waveguide coupling aperture having a thickness dimension
09/05/1989US4864258 RF envelope generator
08/1989
08/30/1989EP0330540A1 Waveguide power divider
08/30/1989EP0330539A1 Mode transformer for a microwave transmission circuit
08/29/1989US4862189 Microwave transformer
08/29/1989US4862120 Wideband stripline to microstrip transition
08/29/1989CA1258891A1 Switchable multi-power-level short slot waveguide hybrid coupler
08/23/1989EP0329090A2 Toothed coupling iris
08/22/1989US4859971 R-segment transmission line directional coupler
08/22/1989CA1258696A1 Simplified phase-controlled television broadcast switching circuit and three-position coaxial lc phase shifter therefor
08/16/1989EP0327892A1 Three-way power splitter using directional couplers
08/15/1989US4857869 High frequency push-pull transformer
08/10/1989WO1989007369A1 Three-way power splitter using directional couplers
08/08/1989US4855697 Coaxial transmission line to microstrip transmission line launcher
08/01/1989US4853657 Orthogonal-polarization duplex send-receive microwave head
08/01/1989US4853656 Device for connecting together two ultra-high frequency structures which are coaxial and of different diameters
08/01/1989US4853650 Symmetric waveguide junction combiner
07/1989
07/25/1989US4851795 Miniature wide-band microwave power divider
07/25/1989US4851794 Microstrip to coplanar waveguide transitional device
07/25/1989CA1257913A1 Device for combining two alternating signals of identical frequency
07/19/1989EP0324240A2 Balanced planar transformers
07/18/1989US4849981 High frequency signal driver for a laser diode and method of forming same
07/18/1989US4849722 Adjustable band suspended substrate filter
07/18/1989US4849720 Orthogonal mode tee
07/11/1989US4847626 Dielectrical material
07/11/1989US4847460 Apparatus for injecting microwave energy by means of an open microwave guide
07/11/1989CA1257349A1 Temperature compensated microwave resonator
07/11/1989CA1257348A1 Microwave directional filter with quasi-elliptic response
07/05/1989EP0322739A1 Simultaneous-delay correlator apparatus
07/04/1989US4845422 For measuring distance
07/04/1989CA1256954A1 Wideband short slot hybrid coupler
06/1989
06/27/1989US4843353 Dielectric slab transistions and power couplers
06/27/1989US4843347 Passive stabilizer for a signal generating source
06/27/1989CA1256518A1 Coupling device between an electromagnetic surface wave line and an external microstrip line
06/21/1989EP0321331A1 Power-coupling device
06/20/1989US4841353 Transistor devices for microwave oscillator elements
06/20/1989US4841260 Half wave plate
06/14/1989EP0319584A1 Directional coupler
06/13/1989US4839662 Composite waveguide coupling aperture having a varying thickness dimension
06/06/1989US4837536 Monolithic microwave integrated circuit device using high temperature superconductive material
06/06/1989US4837529 Millimeter wave microstrip to coaxial line side-launch transition
06/06/1989US4837524 Lower-noise microwave amplifying circuit
05/1989
05/31/1989EP0318309A2 A disconnectable microstrip to stripline transition
05/31/1989EP0318067A2 Wideband microwave hybrid circuit with in phase or phase inverted outputs
05/31/1989EP0317718A2 Planar branch line coupler
05/31/1989EP0317717A2 Planar branch line coupler
05/30/1989US4835543 Dielectric slab antennas