Comb-line filter structure having reduced length and width
阅读：399发布：2023-11-22
专利汇可以提供Comb-line filter structure having reduced length and width专利检索，专利查询，专利分析的服务。并且The comb-line filter is formed by a housing and a plurality of U-shaped resonator elements each having one end connected directly to the grounded housing and the other end connected to the housing through a lumped capacitor. Each of a first set of partitions is disposed between the legs of the U-shaped elements to form a coaxial structure therewith and each of a second set of partitions is disposed either between adjacent resonator elements, between adjacent lumped capacitors, or between an adjacent resonator element and lumped capacitor to control the coupling between resonant cells.，下面是Comb-line filter structure having reduced length and width专利的具体信息内容。
1. A comb-line filter, including in combination: conducting housing means having first and second end walls, side wall means joining said first and second end walls, and first and second closing plates connected to said end walls and to said side wall means to form an enclosure therebetween; a first partition having first and second ends and first and second sides, said first end of said first partition being connected to said first end wall, said first partition extending into said enclosure so that second end is located a first distance away from said second end wall; a first resonator element having first, second and third connected portions, said first portion having an end connected to said first end wall and a body which is positioned along said first side of said first partition and extending past said second end of said first partition, said second portion being positioned along said second end wall and extending between said second end of said first partition and said second end wall, and said third portion being positioned along said second side of said first partition and having an end located a second distance away from said first end wall; first capacitor means connected between said end of said third portion and said first end wall; a first resonant network comprised of said first resonator element, said first capacitor means, said first partition and said housing means; a second partition having first and second ends and first and second sides, said second partition extending into said enclosure with said first end being connected to said first end wall and said second end located a third distance from said second end wall; a second resonator element having first, second and third connected portions, said first portion having an end connected to said first end wall and a body positioned along said first side of said second partition and extending past said second end of said second partition, said second portion being positioned along said second end wall and extending between said second end of said second partition and said second end wall, and said third portion having a body positioned along said second side of said second partition and having an end located a fourth distance away from said first end wall; second capacitor means connected between said end of said third portion of said second resonator element and said first end wall; a second resonant network comprised of said second resonator element, said second capacitor, said second partition and said housing means; and coupling means electrically coupling said first and second resonaNt networks to form the comb-line filter.
2. The comb-line filter of claim 1 wherein: said first portion of said second resonator element is juxtapositioned along said third portion of said first resonator element and along said first capacitor means; and said coupling means is a third partition having a first end connected to said first end wall and extending between said first capacitor means and a part of said first portion of said second resonator element to form a shield therebetween but allowing electromagnetic coupling from said third portion of said first resonator element to the unshielded part of said first portion of said second resonator element.
3. The comb-line filter of claim 1 wherein said third portion of said second resonator element is juxtapositioned along side of said third portion of said first resonator element; and said coupling means is a third partition having a first end connected to said second end wall and extending between said third portions to form a shield therebetween but allowing electromagnetic coupling from said first capacitor means to said second capacitor means.
4. The comb-line filter of claim 1, wherein said first capacitor means is comprised of: a cylindrical tube having an open end and a closed end, said closed end being coupled to said third portion of said first resonator element and said open end being located near said first end wall; and a second plate formed by a threaded member extending through said first end wall toward said open end of said cylinder.
5. The comb-line filter of claim 7 wherein: said first portion of said second resonator element is juxtapositioned along side of said third portion of said first resonator element and along side of said first capacitor means; and said coupling means includes a third partition having an end connected to said second end wall and extending between said first portion of said second resonator element and said third portion of said first resonator element to form a shield therebetween but allowing electromagnetic coupling between said first capacitor means and said second resonator element.
6. The comb-line filter of claim 5 further including: a plurality of said resonant networks being juxtapositioned along side of each other in a tandem manner; said side wall means having first and second side wall members, said first side wall member being juxtapositioned along side said first portion of said first resonator element and said second side wall member being juxtapositioned along side of said third portion and capacitor of the end most resonator element; input terminal means being connected through said first side wall member to said first portion of said first resonator element at a predetermined point thereon; and output terminal means being connected through said second side wall member to said third portion of said end-most resonator element at a predetermined point thereon.
7. The comb-line filter of claim 1 wherein: said third portion of said second resonator element is juxtapositioned alongside of said third portion of said first resonator element; and said coupling means is a third partition having a first end connected to said first end wall and extending between said first and second capacitor means to form a shield therebetween but allowing electromagnetic coupling between said third portions of said first and second resonator elements.
8. The comb-line filter of claim 7 wherein said side wall means includes a first sidewall member juxtapositioned along said first portion of said first resonator element and a second side wall member juxtapositioned along said first portion of said second resonator element; input terminal means connected through said first side wall member to said first portion of said first resonator element; and output terminal means connected through said second side wall member to said first portion of said second resonator elements.
9. The comb-liNe filter of claim 7 wherein said first capacitor means is comprised of a first capacitor having: a first plate formed by a threaded member extending through said first end wall; a resilient member for receiving said threaded member; a second plate formed by a cylindrical tube having an open end and a closed end, said open end extending toward said threaded member and said closed end being coupled to said third portion of said first resonator element; and a body enclosing said cylindrical tube.
10. The comb-line filter of claim 9 wherein said first capacitor means further includes a second capacitor having: a first plate formed by said cylindrical tube; a dielectric formed by said body; and a second plate including said third partition.
11. A two cell filter structure including in combination: housing means having first and second end walls, and first and second side walls joining said first and second end walls, said side and end walls having inside and outside surfaces and closing plates connected to said end walls and said side walls to form a conductive enclosure; a first resonator element having first, second and third integral portions which are at right angles with respect to each other, said first portion having an end connected to said inside surface of said first end wall and a body running generally parallel to said inside surface of said first side wall, and second portion running generally parallel to and located a first distance from said second end wall, and said third portion running generally parallel to said first portion toward said first end wall and having an end located a second distance from said first end wall; a first rectangular resonator member having a body with first and second ends, said first end of said first rectangular resonator member being connected to said first end wall such that said body thereof runs generally parallel to and in between said first portion and said third portion of said first resonator element; said first resonator element, said first rectangular resonator member, and said housing means cooperating with each other to form a first equivalent inductance; first capacitor means connected between said end of said third portion of said first resonator element and said first end wall, said first capacitor means and said first equivalent inductance forming a first resonant cell; a second resonator element having first, second and third integral portions which are at right angles with respect to each other, said first portion having an end connected to said inside surface of said first end wall and a body running generally parallel to said inside surface of said second side wall, said second portion running generally parallel to and located said first distance from said second end wall, and said third portion running generally parallel to said third portion of said first resonator element toward said first end wall and having an end located said second distance from said first end wall, said third portions of said first and second resonator elements thereby being arranged to couple electro-magnetic energy therebetween; a second rectangular resonator member having a body with first and second ends, said first end of said second rectangular resonator member being connected to said first end wall such that said body thereof runs generally parallel to and in between said first portion and said third portion of said second resonator element; said second resonator element and said second resonator member forming a second equivalent inductance; second capacitor means connected between said end of said third portion of said second resonator element and said first end wall, said second capacitor means and said second equivalent inductance forming a second resonant cell; and shield means extending from said first end wall toward said second end wall, said shield means being located between said first and second capacitor means to prevent coupling tHerebetween.
12. The comb-line filter of claim 11 wherein each of said first and second capacitors further includes: a first plate formed by a threaded member extending through said first end wall toward said end of said third portion of said resonator element; a second plate formed by a cylindrical tube having an open end and a closed end, said closed end being integral with said third portion of said resonator element, said open end of said cylindrical tube extending toward said threaded member; and a third plate formed by said shield means.
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