摘要:
A bandpass filter, and a radio communication module and device using the same are disclosed. Provided is the bandpass filter in which resonant electrodes (30a, 30b, 30c) are disposed in an interdigital manner inside of an annular ground electrode (23) disposed in one interlayer of a laminate (10) composed of a plurality of dielectric layers (11) on the upper and lower surfaces of which first and second ground electrodes (21, 22) are disposed, and in which an input coupling electrode (40a) facing the resonant electrode (30a) in an input stage in the interdigital manner, an output coupling electrode (40b) facing the resonant electrode (30b) in an output stage in the interdigital manner, and an input/output coupling conductor (71) which faces the input coupling electrode (40a), the resonant electrode (30a) in the input stage, the output coupling electrode (40b), and the resonant electrode (30b) in the output stage and is subjected to electromagnetic field coupling therewith are disposed in the other interlayer of the laminate (10).
摘要:
A bandpass filter, and a radio communication module and device using the same are disclosed. Provided is the bandpass filter in which resonant electrodes (30a, 30b, 30c) are disposed in an interdigital manner inside of an annular ground electrode (23) disposed in one interlayer of a laminate (10) composed of a plurality of dielectric layers (11) on the upper and lower surfaces of which first and second ground electrodes (21, 22) are disposed, and in which an input coupling electrode (40a) facing the resonant electrode (30a) in an input stage in the interdigital manner, an output coupling electrode (40b) facing the resonant electrode (30b) in an output stage in the interdigital manner, and an input/output coupling conductor (71) which faces the input coupling electrode (40a), the resonant electrode (30a) in the input stage, the output coupling electrode (40b), and the resonant electrode (30b) in the output stage and is subjected to electromagnetic field coupling therewith are disposed in the other interlayer of the laminate (10).
摘要:
A servo accelerometer has a pair of housings having a tubular part, one end opened and the other end closed with a closing part. A frame that supports a pendulum is held between the housings. A permanent magnet is attached to each of the closing parts with a bottom pole piece interposed therebetween. Coils arranged in annular magnetic gaps are attached to the pendulum. The closing part has a recess, and the bottom pole piece is disposed in the recess. The outer circumference of the bottom pole piece faces the inner circumference of the recess with a predetermined gap interposed therebetween.
摘要:
Provided is a curable resin composition which exhibits improved developability even in through holes and can suppress the generation of development residue and which can yield a cured product with excellent heat resistance and hardness. A curable resin composition which comprises a carboxyl-containing resin, a photopolymerization initiator, and barium sulfate that has been pretreated with a dispersant having an acid group and/or a dispersant having a block copolymer structure, a graft polymer structure, and/or a star polymer structure.
摘要:
The present invention provides a hermetic or open compressor for hydrocarbon refrigerant having high reliability. According to the present invention, in the compressor using hydrocarbon as refrigerant, synthetic oil such as polyalkylene glycol oil, ester oil or ether oil is used as freezer oil. Sliding member of the compressor includes both a portion made of aluminum material and a portion made of iron material. Therefore, it is possible to realize a compressor having excellent wear resistance and high reliability.
摘要:
A scroll compressor includes a stationary scroll member accommodated in a closed housing and having a stationary end plate and a stationary scroll wrap protruding axially from the stationary end plate, and also includes an orbiting scroll member accommodated in the closed housing and having an orbiting end plate and an orbiting scroll wrap protruding axially from the orbiting end plate so as to engage with the stationary scroll wrap to define a plurality of working pockets therebetween. A volume ratio indicating a ratio of the volume of the working pockets at an end of suction to that at an end of compression is set to be smaller than a value corresponding to a compression ratio determined by an evaporation pressure and a condensation pressure at a performance half a rated performance during heating.
摘要:
The space in a closed container is divided into two parts by a partition wall member, gas jetting holes through which a high pressure gas released from a compression mechanism section is passed are formed in the partition wall member and a gas collision plate is disposed in opposed relation to the gas jetting holes, and therefore, there is provided a compressor of high achievement factor which is capable of preventing the discharge of oil from the compressor to a refrigerating cycle from being increased even if operated at high rotational frequency.
摘要:
A cable retractor having a spring loaded reel for winding a cable thereonto. The tension applied to the cable by the cable retractor is made to change as the take out length of the cable changes either by changing the effective radius of the reel or the effective spring constant of a spring member biasing the reel. Such a cable retractor can be advantageously applied to a rear shelf structure which lifts a rear shelf cooperative with the opening action of the tail gate of a three-door or five-door car by attaching the cable retractor to either the tail gate or the rear shelf and the free end of the cable taken out from the cable retractor to the other of the tail gate and the rear shelf. Thus, the rear shelf will not droop due to the increase in the tension of the cable when the tail gate is fully open and the cable retractor will not apply undue resistance to the tail gate in the early phase of opening the tail gate. Part of the cable may be still left wound on the reel when the tail gate is fully open so that the rear shelf may be moveable even when the tail gate is fully open.
摘要:
It is an object to provide a reel capable of expecting strength and dimensional accuracy almost equivalent to those of a metal reel, preventing product failures from being caused by the generation of metal powder, exchanging only a damaged part even in the case in which the part of a member for protecting the reel main body is damaged, being manufactured at a low cost by the miniaturization of a metal mold structure, and preventing a carrier tape and a wiring pattern from being damaged or broken as much as possible. The reel including a reel main body 10a is characterized by comprising; a core member 2 made of resin on which a lengthy tape is taken up; a spoke member 4 made of resin that is arranged radially on the both edges of the core member 2 and that regulates the movement in the transverse direction of the tape taken up on the core member 2; and a ring-shaped member 6 that is arranged to be coupled with the spoke member 4; wherein the ring-shaped member 6 includes a ring-shaped stiffener member 14 made of metal used as a stiffener material and includes a cover member 15 made of resin that covers the ring-shaped stiffener member 14.