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