摘要:
A balanced-type mixer having easier mounting of a circuit board into a dielectric line apparatus, easier matching between a dielectric line and diodes, and reduced conversion loss. A first conductor pattern is disposed in a direction substantially perpendicular to first dielectric strips which constitute a first NRD guide, first and second filter circuits are provided at positions on opposite sides of the first dielectric strips, thus forming a first resonance circuit, and beam lead diodes are mounted in series within the resonance circuit. Further, a second conductor pattern is extended substantially from the midpoint between the filter circuits, and a third filter circuit is provided, thus forming a second resonance circuit. A second NRD guide based on second dielectric strips is connected to the second resonance circuit.
摘要:
A dielectric line switch is provided which is capable of easily controlling the propagation of an electromagnetic wave. Also provided is an antenna device employing said dielectric line switch. As an embodiment of the invention, a plurality of dielectric lines and a plurality of primary radiators are provided on a rotary unit. With the rotation of the rotary unit, the dielectric lines are switched ON and OFF by virtue of mechanical means, so that a desired change-over may be effected among the plurality of primary radiators in a time sharing manner, and the positions of the primary radiators may be shifted within a plane of the focal point of a dielectric lens, thereby enabling the transmission wave beam and/or reception wave beam to scan in a desired manner.
摘要:
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 and lower conductor plates, at NRD guide as an output transmission line is constructed, and the line and the NRD guide are coupled. The cutoff frequency of the NRD guide is determined so that the fundamental wave component of oscillation signal of the oscillation circuit is cut off and a harmonic is propagated.
摘要:
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 the NRD guide are coupled.
摘要:
A device with a nonradiative dielectric waveguide which operates in a microwave band or in a millimeter wave band. The device with a nonradiative dielectric waveguide is, for example, an oscillator, a circulator, a coupler or the like. The device has a pair of parallel conductors, a dielectric strip which is disposed between the conductors and propagates a high-frequency electromagnetic wave in a specified mode, a mounting surface which is formed on one of the conductors, and an end surface which is defined by an end of each of the conductors so as to be vertical to a traveling direction of the electromagnetic wave propagated in the dielectric strip. An end of the dielectric strip is exposed at a corresponding end surface of the device.
摘要:
A high-frequency integrated circuit which operates in a microwave band or in a millimeter wave band. The high-frequency integrated circuit has devices with a nonradiative dielectric waveguide such as an oscillator, a circulator, etc., and a mount case with a nonradiative dielectric waveguide in which these devices are mounted. Each of the devices with a nonradiative dielectric waveguide has a couple of conductors, a dielectric strip which is disposed between the conductors and propagates a high-frequency electromagnetic wave in a specified mode, a mounting surface which is formed on one of the conductors, and an end surface which is formed on an end of the conductors so as to be vertical to a traveling direction of the electromagnetic wave propagated in the dielectric strip and on which an end of the dielectric strip is exposed. The devices with a nonradiative dielectric waveguide are evaluated separately, and thereafter, the devices are mounted in the mount case individually.
摘要:
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 this oscillator, an oscillation circuit is formed by providing a line and a Gunn diode on a dielectric substrate. An NRD guide serving as an output transmission line is formed by disposing a dielectric strip between upper and lower conductor plates, and the above-mentioned line and the NRD guide are coupled. The cut-off frequency of this NRD guide is determined so that the fundamental wave component of an oscillation signal from the oscillation circuit is cut off, so that higher harmonic components are propagated.
摘要:
An intersect-line apparatus has two conductor plates. An HE-mode dielectric resonator and four dielectric strips to be coupled to the resonator are disposed between the two conductor plates. The adjacent four dielectric strips are spaced from each other substantially at 90 degrees. Accordingly, signals propagating in two strip lines positioned substantially at 180 degrees and signals propagating in the remaining two strip lines cross each other within the dielectric resonator without interfering with each other.
摘要:
The ease of mounting a circuit board on a nonradiative dielectric line is improved, the degree of freedom of conductor film patterns formed on the circuit board is increased, and the degree of integration can be easily increased to fit within a small size. Dielectric strips are provided between the two conductor plates positioned in parallel to each other, and a circuit board is positioned parallel to the conductor plates. The conductor patterns on the circuit board and the transmission waves of the nonradiative dielectric line are electromagnetically coupled to each other.
摘要:
A high-frequency integrated circuit which operates in a microwave band or in a millimeter wave band. The high-frequency integrated circuit has a plurality of devices with respective nonradiative dielectric waveguides such as an oscillator, a coupler, etc., and a substrate on which these devices are surface-mounted. Each of the devices has a pair of parallel conductors, a dielectric strip which is disposed between the conductors and propagates a high-frequency electromagnetic wave, a mounting surface which is formed on one of the conductors and is in contact with the substrate, and an end surface which is defined by an end of the conductors so as to be vertical to a traveling direction of the electromagnetic wave propagated in the dielectric strip and at which an end of the dielectric strip is exposed. The devices with a nonradiative dielectric waveguide are evaluated separately, and thereafter, the devices are surface-mounted on the substrate close to or in contact with one another.