FILTER ON SURFACE ACOUSTIC WAVES (RU2348101)
» Order full text of this Russian patent (in Russian)
» Order translation of this Russian patent
(54) FILTER ON SURFACE ACOUSTIC WAVES
FIELD: physics, radio.
SUBSTANCE: invention is related to radio electronics, in particular, to frequency selective facilities, and may be used in devices of radio signal frequency selection. Grounded bus of double-mode resonator communication is arranged in the form of meander, at that value of intersection between neighbouring pins (aperture W) periodically changes, taking two values: W1 (minimum) and W 2 (maximum). Since interaction between symmetrical and antisymmetrical modes in this case is more intense than in prototype, filter passband is increased up to 0.15%.
EFFECT: increase of relative passband.
8 dwg
—
(19) RU (11) 2348101 (13) C1
(51) IPC
H03H 9/54 (2006.01)
(12) DESCRIPTIONS OF INVENTION To the patent of Russian Federation
Status: of 03.03.2009 – operates
Document: PDF
(21) Application number registered: 2007120893/09
(22) Application filing date: 2007.06.04
(24) Date started of validity of the patent: 2007.06.04
(45) Date: 2009.02.27
(56) List of prior art documents: RU 2242838 C2, 20.12.2004. SU 1170588 A1, 30.07.1985. EP 0840446 A2, 06.05.1998. GB 2244880 A1, 11.12.1991. JP 2002-280875 A1, 27.09.2002. JP 2002-135081 A1, 10.05.2002.
(72) Inventor information: Jakovlev Fedor Fedorovich (RU); Gapshin Vladimir Konstantinovich (RU); Kudrjashov Sergej Aleksandrovich (RU)
(73) Grantee (asignee) information: Federal’noe gosudarstvennoe unitarnoe predprijatie “Nauchno-proizvodstvennoe predprijatie “Polet” (RU)
Mail address: 603950, g.Nizhnij Novgorod, GSP-462, pl. Komsomol’skaja, 1, FGUP “NPP “Polet”
Source: Russian Tech News