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公开(公告)号：GB2284942A
公开(公告)日：1995-06-21
申请号：GB9425244
申请日：1994-12-14
Applicant: KOREA ELECTRONICS TELECOMM , KOREA TELECOMMUNICATION
Inventor： SUNG HEE KYUNG , LEE CHANG HWA , KIM TAE HONG , LEE SANG SEOK , CHOI TAE GOO
Abstract: A dielectric resonator comprises a dielectric block 301 with a first electrode 305 formed on a first surface 302 and a second electrode 304 formed within an inner conductive hole 303 extending from the surface opposite the first surface 302, towards but not reaching the first surface 302, such that the first and second electrodes 304, 305 face each other to form a coupling capacitor and a conductive layer formed on one or more of the remaining surfaces. The resonators may be combined to form a filter arrangement. The filter may include window and groove arrangements to adjust the coupling between the resonators. The inner conductive hole 303 may have a circular, elliptical or quadrilateral cross sectional shape. The first electrode 305 may extend to an edge of the dielectric block 301 to form a connection terminal allowing direct surface mounting on to a circuit board.
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Patent Agency Ranking
公开(公告)号：GB2284942B
公开(公告)日：1997-06-18
申请号：GB9425244
申请日：1994-12-14
Applicant: KOREA ELECTRONICS TELECOMM , KOREA TELECOMMUNICATION
Inventor： SUNG HEE KYUNG , LEE CHANG HWA , KIM TAE HONG , LEE SANG SEOK , CHOI TAE GOO
Abstract: A dielectric resonator includes a dielectric block having an open surface at one of the surfaces thereof, the remaining surfaces being plated with a conductor. The dielectric block has an inner conductor hole formed at a surface of the dielectric block opposite to the open surface, the inner conductor hole extending a predetermined depth toward the open surface such that it does not perforate through the open surface. An electrode pattern is formed on the open surface such that it faces an end surface of the inner conductor hole, the electrode pattern being adapted to provide an input/output capacitor. The dielectric block has a coupling window formed on a predetermined portion of one of the surfaces of the dielectric block, except for the open surface and the surface formed with the inner conductor hole, at a position adjacent to one of the open surface and the surface formed with the inner conductor hole. The coupling window is free of the plated conductor and adapted to control a coupling degree of the resonator to another resonator. Other embodiments include integral type filters having resonators in a single dielectric block.
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公开(公告)号：CA2497850C
公开(公告)日：2009-07-14
申请号：CA2497850
申请日：2002-06-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM DONG YOUNG , HAHN JIN WOO , CHOY TAE GOO , JUN DONG SUK , LEE SANG SEOK , LEE HONG YEOL
Abstract: A S/N enhancer using the magnetostatic wave signal is disclosed. The S/N enhancer comprises a balun coupler for dividing an input signal into a first and second signals having the same power, the second signal having the phase difference of 180 degree with respect to the first signal; a saturation magnetostatic wave filter for receiving the first signal output from the balun coupler, converting that into a magnetostatic wave signal, and converting the magnetostatic wave signal into a signal having a shape of the first signal, wherein a power of the magnetostatic wave signal is saturated if the first signal has a power of equal to or more than that of a noise signal; a linear magnetostatic wave filter for receiving the second signal from the balun coupler, converting that into a magnetostatic wave signal, and converting the magnetostatic wave signal into a signal having a shape of the second signal, wherein the received second signal is converted into the magnetostatic wave signal having an energy linear to a power of the input signal; and a power synthesizer for synthesizing respective signals output from the saturation magnetostatic wave filter and the linear magnetostatic wave filter.
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公开(公告)号：CA2391789C
公开(公告)日：2005-11-01
申请号：CA2391789
申请日：2002-06-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： LEE HONG YEOL , LEE SANG SEOK , JUN DONG SUK , HAHN JIN WOO , CHOY TAE GOO , KIM DONG YOUNG
Abstract: A S/N enhancer using the magnetostatic wave signal is disclosed. The S/N enhancer comprises a balun coupler for receiving an first signal an d dividing two second signals having the same power and the phase difference of 180 degree; a saturation magnetostatic wave filter for receiving one of t he two second signals output from he balun coupler, converting that into a magnetostatic wave signal, and oppositely converting the magnetostatic wave signal, wherein the power of the magnetostatic wave signal is saturated if t he received second signal has the power of equal to and more than that of a noi se signal; a linear magnetostatic wave filter for receiving the other of the tw o second signals from the balun coupler, converting that into a magnetosatic wave signal, and oppositely converting the magnetostatic wave signal, wherein the received second signal is converted into the magnetostatic wave signal having an energy linear to the power of the input signal; and a power synthesizer for synthesizing the respective signals output from the saturati on magnetostatic wave filter and the linear magnetostatic wave filter. The S/N enhancer does not need phase shifter, and can be applied to a small-sized system that has a broadband and is used at a high power/a low power.
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公开(公告)号：CA2497850A1
公开(公告)日：2003-11-15
申请号：CA2497850
申请日：2002-06-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： HAHN JIN WOO , CHOY TAE GOO , KIM DONG YOUNG , LEE HONG YEOL , LEE SANG SEOK , JUN DONG SUK
Abstract: A S/N enhancer using the magnetostatic wave signal is disclosed. The S/N enhancer comprises a balun coupler for dividing an input signal into a first and second signals having the same power, the second signal having the phase difference of 180 degree with respect to the first signal; a saturation magnetostatic wave filter for receiving the first signal output from the balun coupler, converting that into a magnetostatic wave signal, and converting the magnetostatic wave signal into a signal having a shape of the first signal, wherein a power of the magnetostatic wave signal is saturated if the first signal has a power of equal to or more than that of a noise signal; a linear magnetostatic wave filter for receiving the second signal from the balun coupler, converting that into a magnetostatic wave signal, and converting the magnetostatic wave signal into a signal having a shape of the second signal, wherein the received second signal is converted into the magnetostatic wave signal having an energy linear to a power of the input signal; and a power synthesizer for synthesizing respective signals output from the saturation magnetostatic wave filter and the linear magnetostatic wave filter.
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公开(公告)号：CA2391789A1
公开(公告)日：2003-11-15
申请号：CA2391789
申请日：2002-06-27
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHOY TAE GOO , HAHN JIN WOO , LEE HONG YEOL , KIM DONG YOUNG , LEE SANG SEOK , JUN DONG SUK
Abstract: A S/N enhancer using the magnetostatic wave signal is disclosed. The S/N enhancer comprises a balun coupler for receiving an first signal an d dividing two second signals having the same power and the phase difference of 180 degree; a saturation magnetostatic wave filter for receiving one of t he two second signals output from he balun coupler, converting that into a magnetostatic wave signal, and oppositely converting the magnetostatic wave signal, wherein the power of the magnetostatic wave signal is saturated if t he received second signal has the power of equal to and more than that of a noi se signal; a linear magnetostatic wave filter for receiving the other of the tw o second signals from the balun coupler, converting that into a magnetosatic wave signal, and oppositely converting the magnetostatic wave signal, wherein the received second signal is converted into the magnetostatic wave signal having an energy linear to the power of the input signal; and a power synthesizer for synthesizing the respective signals output from the saturati on magnetostatic wave filter and the linear magnetostatic wave filter. The S/N enhancer does not need phase shifter, and can be applied to a small-sized system that has a broadband and is used at a high power/a low power.
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