摘要:
In an antenna that has high sensitivity to frequencies of narrow bands and over a wide band and that can be small-sized, and in a wireless module, wireless unit and wireless apparatus using this antenna, the antenna is comprised of a transmission line, and variable capacitance means connected to this transmission line, and the variable capacitance means controls the resonant frequency.
摘要:
In an antenna that has high sensitivity to frequencies of narrow bands and over a wide band and that can be small-sized, and in a wireless module, wireless unit and wireless apparatus using this antenna, the antenna is comprised of a transmission line, and variable capacitance means connected to this transmission line, and the variable capacitance means controls the resonant frequency.
摘要:
In an antenna that has high sensitivity to frequencies of narrow bands and over a wide band and that can be small-sized, and in a wireless module, wireless unit and wireless apparatus using this antenna, the antenna is comprised of a transmission line, and variable capacitance means connected to this transmission line, and the variable capacitance means controls the resonant frequency.
摘要:
An antenna module formed with an integrated multilayer substrate having: an antenna with a transmission line; a tuned circuit with a variable capacitance means; a low noise amplifier; and a wave-shaping circuit. The variable capacitance means in the tuned circuit controls a resonance frequency of the antenna by an external control signal being wave-shaped by the wave-shaping circuit, and the antenna outputs a high-frequency output tuned to the controlled resonance frequency to the low noise amplifier directly and then the low noise amplifier outputs the amplified high-frequency output to outside.
摘要:
In an antenna that has high sensitivity to frequencies of narrow bands and over a wide band and that can be small-sized, and in a wireless module, wireless unit and wireless apparatus using this antenna, the antenna is comprised of a transmission line, and variable capacitance means connected to this transmission line, and the variable capacitance means controls the resonant frequency.
摘要:
An antenna module formed with an integrated multilayer substrate having: an antenna with a transmission line; a tuned circuit with a variable capacitance means; a low noise amplifier; and a wave-shaping circuit. The variable capacitance means in the tuned circuit controls a resonance frequency of the antenna by an external control signal being wave-shaped by the wave-shaping circuit, and the antenna outputs a high-frequency output tuned to the controlled resonance frequency to the low noise amplifier directly and then the low noise amplifier outputs the amplified high-frequency output to outside.
摘要:
A tunable receiving apparatus, includes a variable capacitative member, a tunable antenna having a resonant frequency controlled by the variable capacitative member, a tuner outputting a control signal related to a receiving-sensitivity of the tunable antenna, and a control circuit processing the control signal and controlling the variable capacitative member. The variable capacitative member is controlled automatically by the control circuit to optimize the receiving-sensitivity.
摘要:
A tunable receiving apparatus, includes a variable capacitative member, a tunable antenna having a resonant frequency controlled by the variable capacitative member, a tuner outputting a control signal related to a receiving-sensitivity of the tunable antenna, and a control circuit processing the control signal and controlling the variable capacitative member. The variable capacitative member is controlled automatically by the control circuit to optimize the receiving-sensitivity.
摘要:
A clip having a main clip body that is made of resin and has a shape in front view that is closed at one end and open at the other end. The main clip body has engaging arms and holding members positioned to the inside of the engaging arms. The engaging arms are configured so as to be elastically deformed when the main clip body passes through an installing hole of a partner panel and to engage with a rim of the hole when the engaging arms have been inserted. The holding members are configured so as to keep the main clip body fitted onto the clip seat of the mounted member. The engaging arms and the holding members are connected to assume a substantially diamond-shaped loop in front view, and are configured so that the positions thereof differ in side view, and overlap in front view, when elastically deformed.
摘要:
The present edge-emitting semiconductor layer element includes two-dimensional photonic crystals 4 formed in a semiconductor layer, and when one direction of a contact region of an electrode 8 is provided as a length direction (X-direction) and a direction perpendicular to both of the length direction and a thickness direction of a substrate is provided as a width direction (Y-direction), the two-dimensional photonic crystals 4 are, when viewed from a direction (Z-axis) perpendicular to the substrate, located in a region containing the electrode contact region and wider in the width direction than the contact region, and have a refractive index periodic structure in which the refractive index satisfies a Bragg's diffraction condition while periodically changing at every interval along the one direction (X-axis).