Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 8188808 | Compact on-chip branchline coupler using slow wave transmission line Branchline coupler structure using slow wave transmission line effect having both large inductance and large capacitance per unit length. The branchline coupler structure includes a plurality of quarter-wavelength transmission lines, at least one of which includes a... | 05/29/2012 |
| 8174338 | Impedance transforming hybrid coupler AN RF hybrid coupler is described having a coupling section and impedance matching transformer sections. The coupler, constructed of Strpline patterns, accepts an RF input signal at a first impedance value and outputs a plurality of RF signals at a second impedance ... | 05/08/2012 |
| 8085113 | Complementary-conducting-strip coupled-line This invention discloses a complementary-conducting-strip coupled-line (CCS CL). The CCS CL includes a substrate, m layers of mesh ground planes interlacing with m−1 layer(s) of first inter-media-dielectric (IMD) to form a stack structure on the substrate, a secon... | 12/27/2011 |
| 8063715 | Directional coupler A directional coupler which can adjust a degree of coupling easily and by comparatively low cost is provided. A directional coupler has a substrate, a 1st transmission line formed on the substrate, a 2nd transmission line formed on the substrate, and a coupling subs... | 11/22/2011 |
| 8058947 | High-performance coupler A high-load coupler with a first input port, which is connected via a first stripline to an output port, and with at least one second input port, which is connected to an absorber, which provides at least one second stripline, a coupling portion and a connection por... | 11/15/2011 |
| 8058946 | Circuit module with non-contacting microwave interlayer interconnect A circuit module may include a first substrate having a first side and a second side, a second substrate having a third side and a fourth side, the third side facing the second side, and a resilient bond layer coupling the second side to the third side. The first su... | 11/15/2011 |
| 8049575 | Directional coupler with inductively-compensated sharpness of directivity A directional coupler provides at least two coupled lines, at least three ports and at least one inductor. A high-frequency signal is transmitted from the first coupled line to the second coupled line. The circuit is constructed in stripline technology. In this cont... | 11/01/2011 |
| 8044749 | Coupler device The present invention is directed to a coupler that includes a coupler structure including at least one first transmission line disposed on a first major surface of a coupler dielectric substrate and at least one second transmission line disposed on a second major s... | 10/25/2011 |
| 8044748 | Hybrid coupler and UHF television channel mixer comprising such a hybrid coupler A hybrid coupler for UHF-band television transmission has a box containing two lines, each of which is insulated from the box and from the other line, is connected to the other line in a “tandem” configuration, and has a first, a second, and a third portion sepa... | 10/25/2011 |
| 7907032 | Directional coupler A directional coupler includes a main line connected at a first end to an input port and at a second end to an output port, a coupled line connected at a first end to a coupled port and at a second end to an isolated port, and a phase shifter connected at a first en... | 03/15/2011 |
| 7880560 | Directional coupler and a receiving or transmitting device A directional coupler and a receiving or transmitting device. The directional coupler includes: a primary signal line composed of a metal rod; and a coupled signal line composed of a microstrip line in a curved shape on a printed circuit board; wherein the medium be... | 02/01/2011 |
| 7839235 | Feed network device, antenna feeder subsystem, and base station system A feed network device, an antenna feeder subsystem, and a base station system are provided. The feed network device comprises: two first stage couplers, two phase shifters, and two second stage couplers cascaded on a Printed Circuit Board, wherein each coupler is a ... | 11/23/2010 |
| 7821353 | Directional coupler A directional coupler includes two parallel coupled lines and two sector metal plates. The two sector metal plates are connected to a middle portion of each of the two coupled lines. Central angles of the two sector metal plate are less than 90 degrees. ... | 10/26/2010 |
| 7821352 | Ultra-wideband, directional coupler and method of implementation The present invention is a wideband directional coupler comprising first and second coupled transmission lines and first and second equalizers connected at opposite ends of the coupled portion of the second transmission line. Illustratively, the first and second equ... | 10/26/2010 |
| 7821354 | Directional coupler A directional coupler (500), which comprises a dielectric substrate (501) on top of a metal plate (510), is functioning as a ground plane. The transmission path is a suspended stripling so that there is a recess on the ground plane below the tra... | 10/26/2010 |
| 7760047 | Coupling element for electromagnetic coupling of at least two conductors of a transmission line A coupling element is disclosed for electromagnetic coupling of at least two conductors of a transmission line, wherein the coupling element is arranged between a first conductor and a second conductor of the transmission line and has at least one discrete component... | 07/20/2010 |
| 7755451 | Directional coupler An HF plasma process excitation configuration includes an HF generator that is connected to a plasma load through a directional coupler. The directional coupler includes a transmission line, a first coupling line for detecting reflected power from the plasma load, a... | 07/13/2010 |
| 7741929 | Miniature quadrature hybrid A radio frequency (RF) directional coupler (100) can include a first transmission line element (102) having a first end and a second end, and a second transmission line element (104) having a first end and a second end. The first and second tran... | 06/22/2010 |
| 7728694 | Surface mount stripline devices having ceramic and soft board hybrid materials The present invention is directed to a method for making a hybrid material stripline device. The method includes providing an inner layer of material, the inner layer including a dielectric material and at least one conductive sheet. At least one stripline device is... | 06/01/2010 |
| 7714679 | Spiral coupler An improved spiral coupler including a plurality of parallel, coextensive conductive strips disposed in a planar spiral path, including a first strip having an input port and a direct or through port, a second strip having a coupler port and an isolated port and a f... | 05/11/2010 |
| 7605676 | Directional coupler The invention relates to a directional coupler comprising coupled lines, and a method for achieving coupling in a directional coupler under compensation conditions. The directional coupler comprises coupled lines (8, 9), including a first line (8) and ... | 10/20/2009 |
| 7595707 | Microstripline type directional coupler and communication device using the same A directional coupler having a grounding electrode on one surface of a substrate, a coupling line portion on a second surface of the substrate, and a main line disposed so as to be coupled at high frequencies to the coupling line portion. The grounding electrode inc... | 09/29/2009 |
| 7567147 | Directional coupler A directional coupler includes a laminate including a ground electrode substrate, a dielectric substrate that includes line electrodes thereon, a lead-out conductor substrate that includes lead-out conductors of the line electrodes, a ground electrode substrate, and... | 07/28/2009 |
| 7564325 | High directivity ultra-compact coupler A coupler includes a substrate and a stack of first and second dielectric layers extending over a top surface of the substrate. The first dielectric layer comprises different dielectric material than the second dielectric layer. Two conductive lines extend over the ... | 07/21/2009 |
| 7532088 | Microstrip coupler A microstrip coupler is provided for optimizing directivity by improving alignment of even and odd mode phase components. In one form, the microstrip coupler comprises a linear main line with a coupling line adjacent the main line. The coupling line has a non-linear... | 05/12/2009 |
| 7525397 | Stripline directional coupler having a wide coupling gap The provided stripline directional coupler, having two coupling conductors galvanically isolated with respect to a grounding layer at zero potential, includes, in particular, a multilayer conductor pattern having at least three metallic layers separated by at least ... | 04/28/2009 |
| 7508282 | Coupling device with electro-magnetic compensation A coupling device with electro-magnetic compensation is provided. The coupling device includes a first substrate having a first signal line on a top surface of the first substrate and a second substrate having a second signal line on a top surface of the second subs... | 03/24/2009 |
| 7443266 | Variable power coupling device An apparatus and method for providing adaptive control of the output of a radio frequency coupler. Adaptive control may include providing a transmission line having a plurality of branches extending therefrom and terminating, correspondingly, with a plurality of ter... | 10/28/2008 |
| 7425877 | Lange coupler system and method A system and method for the fabrication of high reliability high performance Lange couplers (optionally including capacitors (1011), inductors (1012), multi-layer interconnects (1013), and resistors (1014)) on various thin film hybrid sub... | 09/16/2008 |
| 7420437 | Compact balun with rejection filter for 802.11a and 802.11b simultaneous operation A balancing/unbalancing (balun) structure for operating at frequency f1 includes a microstrip printed circuit board (PCB). A balun on the PCB includes two input ports are coupled to a differential signal. An isolated port is connected to ground through a ... | 09/02/2008 |
| 7414493 | System including a high directivity ultra-compact coupler A system with an RFin terminal and an RFout terminal includes an output matching network. The system further includes a coupler having a thru arm connected between the output matching network and the RFout terminal, and a coupled arm connected to a detector circuit.... | 08/19/2008 |
| 7400214 | Low loss, high power air dielectric stripline edge coupling structure A high power, low loss RF strip transmission line coupling structure is provided. It includes a multi-layer printed circuit board (PCB), a top cover and a bottom cover. The top and bottom covers provide the ground reference for the strip transmission line coupling s... | 07/15/2008 |
| 7394333 | Directional coupler A coupler of distributed type including a first conductive line carrying a main signal between two end terminals, a second conductive line coupled to the first one and between two terminals of which flows a sampled signal, proportional to the main signal, and two ca... | 07/01/2008 |
| 7369020 | Transmission line comprising a plurality of serially connected rotational direction-reversal structures One transmission line includes a first signal conductor which is placed on one surface of a substrate formed from a dielectric or semiconductor and which is formed so as to be curved toward a first rotational direction within the surface, and a second signal conduct... | 05/06/2008 |
| 7349673 | Adaptive radio transceiver with an antenna matching circuit An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged ... | 03/25/2008 |
| 7342467 | Variable power coupling device An apparatus and method for providing adaptive control of the output of a radio frequency coupler. A plurality of input signals is provided to a multi-prong divider/combiner, the divider/combiner having a first and a second input terminals communicating a first and ... | 03/11/2008 |
| 7339366 | Directional coupler for a accurate power detection A power detection system implemented using a pair of directional couplers and a transmission line (or equivalent) disposed between the directional couplers, wherein the transmission line (or equivalent) provides a 90° phase shift between the directional couplers. A... | 03/04/2008 |
| 7336142 | High frequency component The invention relates to a high frequency component of layered structure, and a method for manufacturing the component. The component comprises at least one dielectric layer parallel to the layers of the layered structure, at least two transmission lines for transmi... | 02/26/2008 |
| 7321276 | Independently adjustable combined harmonic rejection filter and power sampler An adjustable low pass filter and directional coupler used in microwave communication are combined to reduce the size of the microwave circuit. The low pass filter portion and coupling portion are made independently tunable with a plurality of varactors and variable... | 01/22/2008 |
| 7319370 | 180 degrees hybrid coupler A multilayer 180 degree hybrid coupler comprises a cascaded pair of quarter wavelength directional couplers, one of the connections between the directional couplers being made by direct connection and the other connection being made indirectly via a length of transm... | 01/15/2008 |
