| Patent Number |
Title Of Patent |
Date Issued |
| 8013692 |
Boundary acoustic wave device |
September 6, 2011 |
| A boundary acoustic wave device includes an electrode structure that is provided at the interface between a piezoelectric substrate and a dielectric layer. The electrode structure defines a ladder filter in which at least two ground pads of a plurality of ground pads, to be connected |
| 7944329 |
Acoustic wave filter device with branched ground wiring sandwiching the IDT area |
May 17, 2011 |
| An acoustic wave filter device has a balance-unbalance conversion function and has an increased out-of-band attenuation. The acoustic wave filter device includes a 5-IDT-type longitudinally coupled resonator-type acoustic wave filter unit including IDTs that are connected between an |
| 6512421 |
Gunn diode oscillator with NRD guide |
January 28, 2003 |
| An oscillation circuit is constructed by providing a line and a Gunn diode on a dielectric substrate, and an oscillation signal as the fundamental frequency signal of an oscillator is injected into the Gunn diode through a DC bias line. By disposing a dielectric stripline between upper a |
| 6445256 |
Oscillator and radio equipment |
September 3, 2002 |
| The present invention provides a small-sized oscillator facilitating the adjustment of a resonance frequency, permitting mass productivity to be improved, sufficiently suppressing a fundamental wave, and permitting cost reduction, and provides radio equipment using the oscillator. In thi |
| 6369662 |
Oscillator, dielectric waveguide device, and transmitter |
April 9, 2002 |
| An oscillator, a dielectric waveguide device and a transmitter incorporating the same, wherein a special temperature-compensating circuit provides a temperature-compensated device with reduced size and cost, and greater productivity. In the oscillator, a dielectric plate having a strip |
| 6344779 |
Oscillator and radio equipment |
February 5, 2002 |
| An oscillation circuit is constructed by providing a line, a Gunn diode, and a dielectric resonator on a dielectric substrate; by disposing a dielectric stripline between upper and lower conductor plates to form an NRD guide which serves as a output transmission line; and the line and th |
