1. Filter for removing airborne particles from the atmosphere wherein the said filer comprises polymer material wherein the polymer material is conductive and is in the form of a fabric or a film.
2. Filter according to claim 1, wherein the synthetic polymer material is doped and is based on at least one of the following polymers, or derivatives of at least one of the following polymers: polyacetylene, polyaniline, cis-polyacetylene, polypyrrole, polythiophene, polyphenylenevinylidene, polyethylenedioxythiophene (PEDOT), polyfenylenvinylidene, or polydialkylfluorene.
3. Filter arrangement comprising a filter for removing airborne particles from the atmosphere wherein the said filter comprises polymer material wherein the polymer material is conductive and is in the form of a fabric or a film and that said filter is applied to or suspended from one or more of a wall or floor or ceiling or window or furnishing of a room and is connectable to an electrical potential in order to receive a first electrical charge.
4. Filter arrangement according to claim 3 wherein said room is provided with an ionizer for ionizing particles in the atmosphere of said room with a second electrical charge which is the opposite of said first electrical charge.
5. Filter arrangement according to claim 3 wherein said polymer material is semi-transparent, opaque or colored.
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. A coupler for detecting power of a radio-frequency (RF) signal, the coupler comprising:
a driver arm configured to route the RF signal; and
a coupler arm implemented relative to the driver arm to detect a portion of the power of the RF signal, portions of the driver arm and the coupler arm forming an overlapping region, at least one of the driver and coupler arms having a non-straight arm shape, the overlapping region including a non-zero lateral offset between the driver and coupler arms.
2. The coupler of claim 1 wherein the non-straight arm shape includes a straight section and a first side loop extending parallel with the straight section implemented as part of the driver arm.
3. The coupler of claim 2 wherein the non-straight arm shape further includes a second side loop extending parallel with the straight section to form a Phi shape.
4. The coupler of claim 1 wherein the driver arm includes a C-shape as the non-straight arm shape.
5. The coupler of claim 4 wherein the coupler arm includes a C-shape as the non-straight arm shape.
6. The coupler of claim 5 wherein the C-shapes of the driver and coupler arms are arranged in a back-to-back configuration such that portions of straight sections of the C-shapes form the overlapping region.
7. The coupler of claim 6 wherein the lateral offset includes the straight sections of the C-shapes being moved away from each other.
8. The coupler of claim 1 wherein the driver arm includes a 7-shape as the non-straight arm shape.
9. The coupler of claim 8 wherein coupler arm includes a straight section that forms the overlapping region with a straight section of the 7-shape.
10. The coupler of claim 1 further including a phase-shifting feature implemented with respect to at least one of the driver and coupler arms to reduce a difference in phases of power ripples associated with the driver and coupler arms.
11. A radio-frequency (RF) module comprising:
a packaging substrate having multiple layers;
a plurality of power amplifiers (PAs) implemented on the packaging substrate; and
a coupler assembly implemented relative to the packaging substrate and including a first coupler configured to detect power of an RF signal amplified by a first PA, the first coupler including a driver arm configured to route the RF signal, and a coupler arm implemented relative to the driver arm to detect a portion of the power of the RF signal, portions of the driver arm and the coupler arm forming an overlapping region, at least one of the driver and coupler arms having a non-straight arm shape, the overlapping region including a non-zero lateral offset between the driver and coupler arms.
12. The RF module of claim 11 wherein the packaging substrate includes a laminate substrate having four or more layers having a layer number i beginning with 1 for the uppermost layer.
13. The RF module of claim 12 wherein the driver arm is implemented over an i-th layer, and the coupler arm is implemented below the i-th layer.
14. (canceled)
15. (canceled)
16. The RF module of claim 11 wherein the coupler assembly further includes a signal path trace for one side of the coupler arm, the signal path trace configured to improve directivity performance of the coupler assembly.
17. The RF module of claim 16 wherein the coupler assembly further includes a second coupler configured to detect power of an RF signal amplified by a second PA, the second coupler including a driver arm configured to route the RF signal, and a coupler arm implemented relative to the driver arm to detect a portion of the power of the RF signal.
18. The RF module of claim 17 wherein portions of the driver arm and the coupler arm of the second coupler form an overlapping region, at least one of the driver and coupler arms having a non-straight arm shape, the overlapping region including a non-zero lateral offset between the driver and coupler arms.
19. The RF module of claim 17 wherein the first coupler and the second coupler are connected in a chain configuration.
20. The RF module of claim 19 wherein the signal path trace for the first coupler is an input for the chain configuration of the first and second couplers.
21. (canceled)
22. The RF module of claim 11 wherein the coupler assembly further includes a phase-shifting feature implemented with respect to at least one of the driver and coupler arms of the first coupler to reduce a difference in phases of power ripples associated with the driver and coupler arms.
23. (canceled)
24. A radio-frequency (RF) device comprising:
a transceiver configured to process RF signals;
an antenna in communication with the transceiver, the antenna configured to facilitate transmission of an amplified RF signal; and
an RF module connected to the transceiver, the RF module configured to generate and route the amplified RF signal to the antenna, the RF module including a coupler configured to detect power of the amplified RF signal, the coupler including a driver arm configured to route the amplified RF signal, and a coupler arm implemented relative to the driver arm to detect a portion of the power of the amplified RF signal, portions of the driver arm and the coupler arm forming an overlapping region, at least one of the driver and coupler arms having a non-straight arm shape, the overlapping region including a non-zero lateral offset between the driver and coupler arms.
25. (canceled)
26-50. (canceled)