Impedance matching transformer for coupling transmission lines
阅读：291发布：2023-08-23
专利汇可以提供Impedance matching transformer for coupling transmission lines专利检索，专利查询，专利分析的服务。并且A transformer circuit for tapping a branching line to a main two-wire transmission line comprising a primary winding having two end sections serially connected respectively in the two wires of the main line and a midsection connected across it. The secondary winding originates the branching line and is coupled to the entire primary winding.，下面是Impedance matching transformer for coupling transmission lines专利的具体信息内容。
1. A transmission line comprising a plurality of successive twowire segments and a plurality of coupling circuits for connecting said segments, each of said coupling circuits comprising a primary winding connected across the terminating ends of a preceding one of said plurality of segments, the originating end of a succeeding one of said plurality of segments being connected to predetermined points on said primary winding to define two equal turn end sections and a midsection thereon, and a secondary winding inductively coupled to said primary winding including said end sections.
2. A transmission line according to claim 1 in which said midsections of said primary windings are coupled respectively to said secondary windings in successively decreasing turns ratios.
3. A transmission line according to claim 1 in which the number of turns of said midsections of said primary windings successively decreases with respect to the number of turns of said end sections of the same primary winding.
4. A transmission line according to claim 3 also comprisiNg a load impedance connected across each of said secondary windings.
5. A transmission line according to claim 4 in which the turns ratios of said primary windings and said secondary windings of all of said coupling circuits are such that the amount of power available to said load impedances is equal when a signal appears on said transmission line.
6. A transmission line according to claim 4 in which the number of turns of the midsection of the primary winding connected across the terminating ends of the last of said successive two-wire segments is reduced to zero whereby substantially all of the signal power is applied to said load impedances when a signal appears on said transmission line.
7. A transmission line comprising a first and a second conductor, a plurality of corresponding series inductor windings in each of said conductors, a plurality of shunt inductor windings connected between said conductors at corresponding sides of each of said series inductor windings to form a plurality of series-shunt primary transformer windings, and a plurality of secondary transformer windings inductively coupled respectively to said plurality of series-shunt primary transformer windings.
8. A transmission line as claimed in claim 7 in which said shunt inductor windings have a successively decreasing number of turns with respect to said secondary transformer windings.
9. An electrical transmission line comprising a pair of conductors and a plurality of transformers each having a primary and a secondary winding, each of said primary windings having a pair of end sections serially connected respectively in said pair of conductors and a midsection connected in parallel across said pair of conductors.
10. An electrical transmission line as claimed in claim 9 in which the number of turns of one end section of a primary winding of each of said transformers is equal to the number of turns of the other end section of a primary winding of the same transformer and the number of turns of the midsections of the primary windings of said transformers progressively decreases with respect to the number of turns of said end sections of said primary windings.
11. An electrical transmission line as claimed in claim 10 also comprising a branch circuit connected to each of said secondary windings.
12. An electrical signal coupling circuit comprising a transmission line having the characteristics of inherent shunt capacitance and series inductance per unit length whose values determine an inherent propagation velocity thereon, said line being adapted to carry only signals whose wave lengths as controlled by said velocity are short relative to the length of said line, said line having a first and a second two-wire segment, a continuous primary transformer winding, means for applying said signals to said primary winding comprising said first two-wire segment connected across all of the turns of said primary winding, means for coupling a predetermined portion of said signals along a continuation of said line comprising said second two-wire segment connected at one end across a midsection of said primary winding including less than all of the turns of said primary winding, and means for tapping the remaining portion of said signals from said line comprising a secondary winding coupled to all of the turns of said primary winding.
13. An electrical signal coupling circuit according to claim 12 also comprising a transformer terminating circuit having a primary winding connected across the other end of said second two-wire segment and a secondary winding coupled to said last-mentioned primary winding.
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