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| Number | Title | Issue Date |
| 8183955 | Circuit comprising transmission lines In a circuit (1) comprising first and second transmission lines (11,12) with first and second line widths, the transmission lines (11,12) are coupled to each other via a coupling (13,14) with first and second coupling widths at its ends, ... | 05/22/2012 |
| 7898357 | Coaxial impedance matching adapter and method of manufacture An impedance adapter with body and cap portions coupled together encloses a cavity with a printed circuit board (PCB). The PCB is provided with a trace on a first side and a ground plane on a second side. The trace is coupled to a first contact at a first end of the... | 03/01/2011 |
| 7898356 | Coaxial transmission line microstructures and methods of formation thereof Provided are coaxial transmission line microstructures formed by a sequential build process, and methods of forming such microstructures. The microstructures include a transition structure for transitioning between the coaxial transmission line and an electrical con... | 03/01/2011 |
| 7855614 | Integrated circuit transmission lines, methods for designing integrated circuits using the same and methods to improve return loss Integrated circuit transmission lines are designed to match elements at opposing ends of the transmission line over a frequency range of interest. By modifying characteristics of the transmission line over the length of the transmission line, from a first end couple... | 12/21/2010 |
| 7808341 | Broadband RF connector interconnect for multilayer electronic packages A coaxial transition arrangement including a coaxial connector for connecting a coaxial cable to a multilayer package has an improved coaxial connector for accomplishing impedance matching and providing improved broadband performance. Impedance matching is provided ... | 10/05/2010 |
| 7782156 | Low-loss interface In general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. In one exempla... | 08/24/2010 |
| 7760046 | Coupler to c-pathway device and methodology The invention is an electromagnetic wave or “EM” coupler for successfully connecting EM waves between an EM generator output and a conductive pathway or “c-pathway” that is not normally considered as an EM transmission medium or line. The coupler includes a ... | 07/20/2010 |
| 7486157 | Package for high frequency waves containing high frequency electronic circuit In an embodiment of the invention, a package for high frequency waves mounted by a high frequency electronic circuit comprises an hermetic box-shaped high frequency package containing a high frequency electronic circuit in the inside and shielded by a conductor, an ... | 02/03/2009 |
| 7471168 | SMA connector The present invention discloses to an SMA connector, a preferable embodiment of which comprises a body acting as ground, a central conductor existing in the inner part of the ground, an insulator with a predetermined dielectric constant existing between the body and... | 12/30/2008 |
| 7446624 | Transmission line and wiring forming method To provide a transmission line capable of absorbing the reflection caused by mismatching between impedances and restraining the attenuation value of a signal. The following wiring patterns are formed out of a connector mounting area in which a connector is mounted: ... | 11/04/2008 |
| 7439822 | Waveguide substrate having two slit-like couplings and high-frequency circuit module A waveguide substrate has improved signal conversion characteristic to a cavity waveguide at a post wall waveguide less suffering a manufacturing error occurring at a portion leading the signal to the cavity waveguide. The waveguide substrate has a converting part p... | 10/21/2008 |
| 7436268 | Signal transmission structure, circuit board and connector assembly structure A signal transmission structure for connecting a coaxial cable connector is provided. The coaxial cable connector has a signal pin. The signal transmission structure includes a reference plane and a conductive layer, and the conductive layer is located on one side o... | 10/14/2008 |
| 7423497 | Device for coupling suspended stripline and NRD guides A hybrid microwave-coupling device is for transmitting signals from non-radiative dielectric (NRD) waveguides to suspended striplines (SSL), and vice-versa. The two transmission lines are placed transversally with a longitudinal side of the NRD guide facing the SSL ... | 09/09/2008 |
| 7420436 | Transmission line to waveguide transition having a widened transmission with a window at the widened end In one aspect, an embodiment of the invention provides a transition from a planar substrate/chip circuit microwave transmission line to waveguide transmission media on the back of the substrate/chip. The transition enables planar waveguide fed MMW ESA architectures ... | 09/02/2008 |
| 7417517 | Method and apparatus for a communications filter A method and apparatus for a highpass filter structure using transmission line construction which has multiple output tabs for selection of corner frequencies utilizing a plurality of resonators coupled to the transmission line. The transmission line has a character... | 08/26/2008 |
| 7397320 | Non-uniform transmission line for reducing cross-talk from an aggressor transmission line A non-uniform transmission line, including at least a first section with length L1, uniform width W1 and thickness h1, and a second section with length L2, uniform width W2 and thickness h2, joined together to form a composi... | 07/08/2008 |
| 7394337 | Multilayer interconnection board A multilayer interconnection board (10) comprises a dielectric substrate (11), a through-hole (15), a signal line (12) having a large width section (12A) and a small width section (12B) connected with the through-hole (15... | 07/01/2008 |
| 7388451 | Thickness tapered substrate launch A technique for interconnecting monolithic microwave integrated circuits (MMICS) on a substrate, and a method for fabricating substrate sections that facilitate such interconnection. A MMIC is positioned in a gap in the substrate, on which are formed conventional mi... | 06/17/2008 |
| 7388179 | Microwave radiating applicator with reduced sensitivity to surrounding media A microwave energy applicator radiating uniformly all around the applicator that maintains high efficiency Voltage Standing Wave Ratio (V.S.W.R.) for surrounding media of dielectric constants varying from about 1 to about 80. In a particular embodiment, the high eff... | 06/17/2008 |
| 7382212 | Transition between a rectangular waveguide and a microstrip line comprised of a single metallized bar The transition between a rectangular waveguide and a microstrip line consists of a ribbed rectangular waveguide realised in a foam bar in synthetic material of which the metallized base under the rib continues in the form of a foam plate constituting a substrate for... | 06/03/2008 |
| 7358830 | Compact segmented stub A segmented stub has at least one serpentine signal path that increases the effective electrical length of the stub without increasing the overall physical length or area of the stub. This permits more compact monolithic millimeter-wave and microwave integrated circ... | 04/15/2008 |
| 7357641 | Card edge coaxial connector An adapter having a housing, a ground clip and an adapter subassembly all located in the housing. The adapter subassembly includes a proximal portion that can be coupled to a coaxial connector and a distal portion that can be coupled to a printed circuit board. A ce... | 04/15/2008 |
| 7336141 | Junction with stepped structures between a microstrip line and a waveguide An arrangement for a junction between a microstripline and a waveguide is provided. The arrangement includes a microstripline fitted on the upper face of a dielectric substrate, a waveguide fitted on the upper face of the substrate and has an opening on at least one... | 02/26/2008 |
| 7326872 | Multi-frequency dynamic dummy load and method for testing plasma reactor multi-frequency impedance match networks In one implementation, a method is provided for testing a plasma reactor multi-frequency matching network comprised of multiple matching networks, each of the multiple matching networks having an associated RF power source and being tunable within a tunespace. The m... | 02/05/2008 |
| 7315223 | Microstrip-to-microstrip RF transition including co-planar waveguide connected by vias A microstrip-to-microstrip RF transition circuit that employs a wide microstrip line transition to a short co-planar waveguide section. In one embodiment, a first microstrip line and a first ground plane are patterned on a top surface of a semiconductor wafer, and a... | 01/01/2008 |
| 7315222 | Matching feed partially inside a waveguide ridge An impedance matching feed is disclosed for use in a ridge waveguide which allows a coaxial transmission line, generally having an impedance of fifty ohm, to be matched to a ridge waveguide of arbitrary impedance. The matching feed consist of a transformer which is ... | 01/01/2008 |
| 7295084 | Electrical interconnection for coaxial line to slab line structure including a bead ring An interconnection includes a microcircuit package having a slot, and a receiving feature. A bead ring is fitted into the receiving feature. A center conductor extends through a dielectric support disposed in the bead ring and through the slot. The center conductor ... | 11/13/2007 |
| 7294904 | Integrated circuit package with improved return loss A packaged integrated circuit includes an integrated circuit and a package substrate. A trace in the package substrate includes a first portion and a second, high-inductance, portion. The high-inductance portion of the trace is proximate to a port of the integrated ... | 11/13/2007 |
| 7274269 | Waveguide transmission line converter where the open end of the waveguide has a beveled inner corner A waveguide-transmission line converter has a waveguide including side walls which have inner corners at an open end of the waveguide. The inner corners are beveled to provide tapered inner surfaces. Even if a dielectric substrate is assembled out of alignment with ... | 09/25/2007 |
| 7269028 | Trace-pad interface for improved signal quality A method of routing or laying out signal traces on printed wire or circuit board in order to improve signal transmission quality. The method includes routing a given signal trace such that it is electrically connected to a rectangular corner of a substantially wider... | 09/11/2007 |
| 7269027 | Ceramic optical sub-assembly for optoelectronic modules Optoelectronic components, specifically, ceramic optical sub-assemblies are described. In one aspect, the optoelectronic component includes a ceramic base substrate having a pair of angled (or substantially perpendicular) faces. The electrical traces are formed dire... | 09/11/2007 |
| 7268649 | Partial suspended open-line resonator for parallel coupled line filters The present invention disclosed a partial-suspended open-line resonator for parallel-coupled line filter for size shrinking and well resonant response. The partial-suspended open-line resonator comprises one open conductive line, one etched ground structure having a... | 09/11/2007 |
| 7259968 | Tailoring impedances of conductive traces in a circuit board A multi-layer circuit board includes a first layer having at least first and second conductive traces of different widths and the same impedance. One of a first power plane and first ground plane has a void region such that the first conductive trace is spaced apart... | 08/21/2007 |
| 7253699 | RF MEMS switch with integrated impedance matching structure An impedance matching structure for a RF MEMS switch having at least one closeable RF contact in an RF line, the impedance matching structure comprising a protuberance in the RF line immediately adjacent the RF contact that forms one element of a capacitor, the othe... | 08/07/2007 |
| 7242266 | Distributed interconnect A distributed interconnect and a method is provided for interconnecting electrical components which minimizes coupling inductance and increases bandwidth. The interconnect includes a transmission line with a first and second conductive transmission element. The firs... | 07/10/2007 |
| 7221327 | Tunable matching circuit The present invention provides for low loss tunable matching circuits at rf frequencies. Ferro-electric materials are used to produce low loss tunable capacitors and inductors for use in matching circuits. ... | 05/22/2007 |
| 7183873 | Tapered thickness broadband matching transformer An impedance matching transformer is disclosed. The transformer includes a conductive ground plane and a dielectric substrate disposed upon the conductive ground plane. The dielectric substrate has a first end and a second end. The dielectric substrate may be of a u... | 02/27/2007 |
| 7161791 | Variable capacitance membrane actuator for wide band tuning of microstrip resonators and filters A device for varying the capacitance of an electronic circuit is disclosed. The device comprises a flexible membrane located above the electronic circuit, a metal layer connected to the flexible membrane, and bias circuitry located above the membrane. Variation of t... | 01/09/2007 |
| 7157987 | Transmission line having a transforming impedance A transmission line for high-frequency differential signals and having a transforming impedance is formed into a substrate. The transmission line is comprised of a first slot, the opposing surfaces of which carry a conductive surface capable of carrying electrical s... | 01/02/2007 |
| 7154355 | Transmission line with a transforming impedance and solder lands A transmission line for high-frequency differential signals and having a transforming impedance is formed into a substrate. The transmission line is comprised of a slot, the opposing surfaces of which carry a conductive surface capable of carrying electrical signals... | 12/26/2006 |
