摘要:
An electronic component module according to the invention includes: a mounting substrate 11 including a shield layer 13 and on which a first cavity 14a and a second cavity 14b are formed; a first electronic component 16a positioned in the first cavity 14a and used in a first frequency band; a second electronic component 16b positioned in the second cavity 14b and used in a second frequency band; lid members 15 which seal the first cavity 14a and the second cavity 14b; and patch antennas 17 which transmit/receive radio waves in the frequency bands, the antennas connected to the electronic components 16; wherein the electronic components 16 are mounted on the mounting substrate 11 via a substrate component 19 having a higher heat resistance than the mounting substrate 11 and that the mounting substrate 11 is composed of a member having a lower dielectric constant that the substrate component 19.
摘要:
At least one of a rise time and a fall time of a dielectric resonator oscillator are reduced. The dielectric resonator oscillator includes a dielectric resonator, a drive circuit for applying a resonance voltage to the dielectric resonator, a switch for applying a voltage required for generating the resonance voltage to the drive circuit, a switch for applying a ground voltage for stopping generation of the resonance voltage to the drive circuit, and a capacitor connected to a power terminal side that supplies a voltage, as seen from the switch, for removing noise generated by the drive circuit. If these switches are made conductive exclusively, oscillation can be stopped immediately by turning on the switch. Since the capacitor is in a charge storage state at all times, regardless of ON/OFF of the switch, the oscillation operation can be started immediately when the switch is turned ON.
摘要:
At least one of a rise time and a fall time of a dielectric resonator oscillator are reduced. The dielectric resonator oscillator includes a dielectric resonator, a drive circuit for applying a resonance voltage to the dielectric resonator, a switch for applying a voltage required for generating the resonance voltage to the drive circuit, a switch for applying a ground voltage for stopping generation of the resonance voltage to the drive circuit, and a capacitor connected to a power terminal side that supplies a voltage, as seen from the switch, for removing noise generated by the drive circuit. If these switches are made conductive exclusively, oscillation can be stopped immediately by turning on the switch. Since the capacitor is in a charge storage state at all times, regardless of ON/OFF of the switch, the oscillation operation can be started immediately when the switch is turned ON.
摘要:
An electronic component module has a device-side module A and an antenna-side module B. The device-side module A is equipped with a first dielectric substrate 11 that is formed with a first transmission line 11a and a high-frequency device 13 that is mounted on the first dielectric substrate 11 and is connected to the first transmission line 11a. The antenna-side module B is equipped with a second dielectric substrate 12 that is laid on the first dielectric substrate 11 in such a manner that they are arranged in a lamination direction and that is formed with a second transmission line 12a that is electrically connected to the first transmission line 11, and an antenna element 14 that is provided on the second dielectric substrate 12 and electrically connected to the high-frequency device 13 via the second transmission line 12a and the first transmission line 11a.
摘要:
A wireless power feeder has a power feed coil that performs a power feed by a non-contact method to a wireless power receiver having a power receive coil. A power source section supplies AC power to the power feed coil. A control section calculates a power transmission efficiency from the power feed coil to the power receive coil to control a power source section so that the power supply to the power feed coil is in a stopped or intermittent state when the power transmission efficiency is lower than a first determination reference value; is in a first power supply state when the power transmission efficiency is equal to or higher than the first determination reference value and lower than a larger second determination reference value; and is in a second power supply state when the power transmission efficiency is equal to or higher than the second determination reference value.
摘要:
A modulated pulse wave requires a pulse width of 1 nsec or less, but it is difficult that a PIN diode, which is conventionally used treats such a modulated pulse wave with narrow pulse width. In order to solve such a problem, it is an object to provide a pulse modulator, which outputs a modulated pulse wave with narrow pulse width and a pulse wave radar device, which can output a modulated pulse wave with narrow pulse width. In order to achieve this operation, the pulse modulator and the pulse wave radar device of the present invention differentiate a pulse from a pulse generating circuit so as to generate a differentiated wave with narrow width, and switch an oscillated wave from an oscillating circuit according to the differentiated wave so as to output a modulated pulse wave with narrow pulse width.
摘要:
A modulated pulse wave requires a pulse width of 1 nsec or less, but it is difficult that a PIN diode, which is conventionally used treats such a modulated pulse wave with narrow pulse width. In order to solve such a problem, it is an object to provide a pulse modulator, which outputs a modulated pulse wave with narrow pulse width and a pulse wave radar device, which can output a modulated pulse wave with narrow pulse width. In order to achieve this operation, the pulse modulator and the pulse wave radar device of the present invention differentiate a pulse from a pulse generating circuit so as to generate a differentiated wave with narrow width, and switch an oscillated wave from an oscillating circuit according to the differentiated wave so as to output a modulated pulse wave with narrow pulse width.
摘要:
A magnetostatic wave device including a magnetic garnet film which excites and propagates magnetostatic waves upon receiving electromagnetic waves, a magnetic field generator which applies a magnetic field to the magnetic garnet film, first and second ground conductors opposing each other and sandwiching the magnetic garnet film therebetween, and an RF signal feeder line disposed between the magnetic garnet film and the first ground conductors. The first ground conductor has an opposing surface opposed to one main surface of the magnetic garnet film. The second ground conductor has an opposing surface opposed to the other main surface of the magnetic garnet film. In the device,t.sub.1 .gtoreq.t.sub.R +5 .mu.mt.sub.2 .gtoreq.0 .mu.m, andt.sub.1 +t.sub.2 .ltoreq.500 .mu.m,where t.sub.1 is a distance between the opposing surface of the first ground conductor and the one main surface of the magnetic garnet film, t.sub.2 is a distance between the opposing surface of the second ground conductor and the other opposing surface of the magnetic garnet film and t.sub.R is a thickness of the RF signal feeder line.
摘要:
A wireless power feeder has a power feed coil that performs a power feed by a non-contact method to a wireless power receiver having a power receive coil. A power source section supplies AC power to the power feed coil. A control section calculates a power transmission efficiency from the power feed coil to the power receive coil to control a power source section so that the power supply to the power feed coil is in a stopped or intermittent state when the power transmission efficiency is lower than a first determination reference value; is in a first power supply state when the power transmission efficiency is equal to or higher than the first determination reference value and lower than a larger second determination reference value; and is in a second power supply state when the power transmission efficiency is equal to or higher than the second determination reference value.
摘要:
An electronic component module has a device-side module A and an antenna-side module B. The device-side module A is equipped with a first dielectric substrate 11 that is formed with a first transmission line 11a and a high-frequency device 13 that is mounted on the first dielectric substrate 11 and is connected to the first transmission line 11a. The antenna-side module B is equipped with a second dielectric substrate 12 that is laid on the first dielectric substrate 11 in such a manner that they are arranged in a lamination direction and that is formed with a second transmission line 12a that is electrically connected to the first transmission line 11, and an antenna element 14 that is provided on the second dielectric substrate 12 and electrically connected to the high-frequency device 13 via the second transmission line 12a and the first transmission line 11a.