1. A directional coupler, comprising:
a first structure with distributed line having a first conductive line intended to convey a main signal between two end terminals and having a second conductive line, coupled to the first one, for conveying a secondary signal proportional to the main signal; and
a second structure with local elements comprising, between a first terminal of the coupler for extracting the secondary signal and a first end of the second line, two attenuators in series between which is interposed a low-pass filter and, between a second terminal of the coupler and the second end of the second line, at least one attenuator.
2. The coupler of claim 1, wherein said structure with local elements comprises, on the side of the second end of the second line, two attenuators between which is arranged a low-pass filter.
3. The coupler of claim 1, wherein the low-pass filter(s) exclusively comprise a conductive planar winding.
4. The coupler of claim 1, wherein said attenuators are each formed of an assembly of resistive elements providing inputoutput impedances equal to a reference impedance.
5. The coupler of claim 4, wherein said assemblies are \u201c\u03c0\u201d assemblies.
6. The coupler of claim 1, wherein said structure with distributed lines is a Lange structure.
7. The coupler of claim 1, wherein no element comprises a capacitive element, except for possible stray capacitances.
8. A radio-frequency transmission chain comprising, between a transmit amplifier and a connection to an antenna, a coupler according to claim 1.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An electrical connector assembly comprising:
an insulative body having a plurality of slots and a plurality of terminal slots;
a printed circuit board (PCB) having a plurality of welding holes and a plurality of conductive parts, the PCB being fixed onto the insulative body, and each of the welding holes being respectively electrically connected to each of the conductive parts;
a plurality of first terminals inserting into the slots of the insulative body, the first terminals having contacting parts extending into the terminal slots of the insulative body, and each of the welding parts at the rear-end of the first terminals being respectively welded to each of the welding holes of the PCB;
a base having a rectangular hole and two guiding slots, the base having a plurality of second terminals being inserted therein, wherein the contacting parts of the second terminals are extended into the rectangular hole of the base, and each of the welding parts at the rear-end of the second terminals is respectively welded to each of the conductive parts of the PCB;
a movable member having a clamping surface and two clamping arms, the clamping surface passing through the rectangular hole of the base, and the two clamping arms of the movable member passing through the two guiding slots of the base; and
a flexible flat cable (FFC) having an insulative layer, the insulative layer being disposed with a plurality of conductors, the plurality of conductors being exposed at the front-end of the FFC; wherein the front-end of the FFC is inserted into the rectangular hole of the base, and the clamping surface of the movable member presses against the front-end of the FFC to enable the conductors of the FFC to contact with the contacting parts of the second terminals.
2. The electrical connector assembly as claimed in claim 1, wherein each of the two clamping arms of the movable member has a rake face to clamp the base.
3. The electrical connector assembly as claimed in claim 1, wherein the clamping surface of the movable member comprises two extension pieces, and the two extension pieces are inserted into the rectangular hole of the base and press against the front-end of the FFC.
4. The electrical connector assembly as claimed in claim 1, wherein the insulative body comprises at least one positioning rod and engaging part, and the PCB comprises at least one fixing hole to be fixed to the positioning rod of the insulative body, thus the engaging part of the insulative body is engaged to the PCB.
5. The electrical connector assembly as claimed in claim 4, wherein the positioning rod of the insulative body comprises at least one stopper part and the insulative body further comprises a block, whereby the PCB is engaged by the engaging part, the stopper part and the block of the insulative body.
6. The electrical connector assembly as claimed in claim 1, wherein the FFC is disposed with a protective film which is bonded onto the insulative layer of the FFC.
7. An electrical connector assembly comprising:
an insulative body having a plurality of slots and a plurality of terminal slots;
a printed circuit board (PCB), having a plurality of welding holes and a plurality of conductive parts, the PCB being fixed onto the insulative body, and each of the welding holes being respectively electrically connected to each of the conductive parts;
a plurality of first terminals inserting into the slots of the insulative body, the first terminals having contacting parts extending into the terminal slots of the insulative body, and each of the welding parts at the rear-end of the first terminals being respectively welded to each of the welding holes of the PCB;
a base having a rectangular hole and two guiding slots, the base having a plurality of second terminals inserted therein, wherein the contacting parts of the second terminals are extended into the rectangular hole of the base, and each of the welding parts at the rear-end of the second terminals is respectively welded to each of the conductive parts of the PCB; and
a movable member having a clamping surface and two clamping arms, and the clamping surface being inserted into the rectangular hole of the base, and each of the two clamping arms of the movable member being inserted into the two guiding slots of the base; wherein two fixing terminals are inserted into the base, and each of the two fixing terminals of the base is welded to the PCB, a gap is defined by the clamping surface of the movable member and the contacting parts of the second terminals.
8. The electrical connector assembly as claimed in claim 7, wherein the clamping surface of the movable member comprises two extension pieces, and the two extension pieces pass through the rectangular hole of the base.
9. The electrical connector assembly as claimed in claim 7, wherein a flexible printed circuit (FPC) is inserted into the gap, and the clamping surface of the movable member presses against the FPC to enable the contacting parts of the second terminals to electrically connect to the Flexible Printed Circuit.
10. The electrical connector assembly as claimed in claim 7, wherein a FFC is inserted into the gap, and the clamping surface of the movable member presses against the FFC, thus the contacting parts of the second terminals are electrically connected to the FFC.
11. The electrical connector assembly as claimed in claim 7, wherein each of the conductive parts of the PCB is electrically connected to each of the welding holes in a many-to-one manner.
12. The electrical connector assembly as claimed in claim 7, wherein each of the conductive parts of the PCB is electrically connected to each of the welding holes in a one-to-one manner.
13. The electrical connector assembly as claimed in claim 7, wherein the insulative body comprises at least one positioning rod and engaging part, and the PCB comprises at least one fixing hole to be fixed on the positioning rod of the insulative body, and the engaging part of the insulative body is engaged to the PCB.
14. The electrical connector assembly as claimed in claim 13, wherein the positioning rod of the insulative body comprises at least one stopper part and the insulative body further comprises a block, whereby the PCB is engaged by the engaging part, the stopper part and the block of the insulative body.
15. An electrical connector assembly comprising:
an insulative body, having a plurality of slots and a plurality of terminal slots;
a printed circuit board (PCB), having a plurality of welding holes and a plurality of conductive parts, the PCB being fixed onto the insulative body, and each of the welding holes being respectively electrically connected to each of the conductive parts;
a plurality of first terminals, inserting into the slots of the insulative body, the first terminals having contacting parts extending into the terminal slots of the insulative body, and each of the welding parts at the rear-end of the first terminals being respectively welded to each of the welding holes of the PCB; and
a base, having a rectangular hole, and a plurality of second terminals being inserted into the base, the contacting parts of the second terminals being extended into the rectangular hole of the base, and each of the welding parts at the rear-end of the second terminals being respectively welded to each of the conductive parts of the PCB; wherein the base comprises a movable member having a clamping surface, and the clamping surface is inserted into the rectangular hole of the base, and define a gap by the clamping surface and the contacting parts of the second terminals.
16. The electrical connector assembly as claimed in claim 15, wherein the clamping surface of the movable member comprises two extension pieces, and the two extension pieces are inserted into the rectangular hole of the base.
17. The electrical connector assembly as claimed in claim 15, wherein each of the conductive parts of the PCB is electrically connected to each of the welding holes in a many to one manner.
18. The electrical connector assembly as claimed in claim 15, wherein each of the conductive parts of the PCB is electrically connected to each of the welding holes in a one to one manner.
19. The electrical connector assembly as claimed in claim 15, wherein the insulative body comprises at least one positioning rod and engaging part, and the PCB comprises at least one fixing hole to be fixed to the positioning rod of the insulative body, and the engaging part of the insulative body clamps the PCB.
20. The electrical connector assembly as claimed in claim 19, wherein the positioning rod of the insulative body comprises at least one stopper part and the insulative body further comprises a block, whereby the PCB is engaged by the engaging part, the stopper part and the block of the insulative body.