GB1005357A - Bridge type filter network - Google Patents
Bridge type filter networkInfo
- Publication number
- GB1005357A GB1005357A GB4061662A GB4061662A GB1005357A GB 1005357 A GB1005357 A GB 1005357A GB 4061662 A GB4061662 A GB 4061662A GB 4061662 A GB4061662 A GB 4061662A GB 1005357 A GB1005357 A GB 1005357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reactances
- pair
- arrangement shown
- capacitances
- oct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
- H03H7/1783—Combined LC in series path
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/17—Structural details of sub-circuits of frequency selective networks
- H03H7/1716—Comprising foot-point elements
- H03H7/1733—Element between different shunt or branch paths
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Filters And Equalizers (AREA)
Abstract
1,005,357. Electrical filter networks. STANDARD TELEPHONES & CABLES Ltd. Oct. 26, 1962 [Oct. 27, 1961], No. 40616/62. Heading H3U. Bridge-type filter network comprises four reactances in a serial loop, three being of the same type and the fourth being a reactive dipole exhibiting at least one resonance and at least one antiresonance frequency and at high frequency the reactive dipole being of the same type as at low frequency. In the arrangement shown in Fig. 7 the reactances aZ, bZ and cZ are capacitances where b is the geometric mean between a and c, and the fourth reactance yZ is constituted by one or more crystals in combination with one or more capacitances, Z being the normalized impedance. The pair of reactances aZ and bZ are connected between terminals 1 and 2 as are also the pair of reactances cZ and yZ, and the junctions between the two reactances of a pair of reactances are connected to terminals 3 and 4, respectively. The arrangement shown in Fig. 7 is such that the band-pass filter sections exhibit an infinite attenuation pole in the upper stopband. The arrangement shown in Fig. 9, incorporating reactances aY, bY, cY and yY, where Y is the normalized admittance, is used if an infinite attenuation pole is required in the lower stop-band. The filter networks referred to above are the equivalents of various networks discussed in the Specification.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL270712 | 1961-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1005357A true GB1005357A (en) | 1965-09-22 |
Family
ID=19753370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4061662A Expired GB1005357A (en) | 1961-10-27 | 1962-10-26 | Bridge type filter network |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE624164A (en) |
| GB (1) | GB1005357A (en) |
-
0
- BE BE624164D patent/BE624164A/xx unknown
-
1962
- 1962-10-26 GB GB4061662A patent/GB1005357A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE624164A (en) |
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