Communication device with integration in separate transmitter and receiver antennas

• US 20040072542A1
• Filed: 10/10/2002
• Published: 04/15/2004
• Est. Priority Date: 10/10/2002
• Status: Abandoned Application

• Current Assignee: Protura Wireless, Inc. (Safeguard Scientifics (Delaware), Inc.)
• Original Assignee: Protura Wireless, Inc. (Safeguard Scientifics (Delaware), Inc.)
• Inventors: Sanford, John Richard
• Application Number:
  US10/268,564
• Publication Number:
  US 20040072542A1
• Time in Patent Office: Days
• US Class Current: 455/73
• CPC Class Codes: H04B 1/005 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
• CPC Class Codes: H04B 1/406 with more than one transmission mode, e.g. analog and digital modes

Abstract

Integrated RF components in the radio frequency (RF) front end of a communication device. The RF front end includes an antenna function for converting between radiated and electronic signals, includes a filter function for limiting signals within operating frequency bands, an amplifier function for boosting signal power and a mixer function for shifting frequencies between RF and lower frequencies. The receive antenna function is separate from the transmit antenna function where two different integrated filters/antennas (filtennas) are employed, a filtenna for the receive path and a filtenna for the transmit path.

Claims

1. (Original) RF components for an RF front end of a communication device where the RF front end includes,

for a receive path,

a receive antenna function for converting between radiated and electronic signals, includes a filter function for limiting the electronic signals within operating frequency bands of the receive path of the communication device, an amplifier function for amplifying the electronic signals in the receive path and a mixer function for shifting the electronic signals in the receive path between RF and lower frequencies, said functions connected at junctions in the receive path of said RF front end to enable processing of the receive electronic signals,

for a transmit path,

a mixer function for shifting the electronic signals from lower frequencies to the RF frequencies in the transmit path, an amplifier function for amplifying the electronic signals in the transmit path, a filter function for limiting the electronic signals within operating frequency band of the transmit path of the communication device and a transmit antenna function for converting between electronic signals in the transmit path to radiated signals, said functions connected at junctions in the transmit path of said RF front end to enable processing of the transmit electronic signals,

the improvement characterized by,

said RF componenst,

for said receive path, integrating said antenna function and said filter function forming receive filtenna means characterized by integrated junction parameters for a combination of the antenna function and the filter function in the receive path,

for said transmit path, integrating said antenna function and said filter function forming transmit filtenna means characterized by integrated junction parameters for a combination of the antenna function and the filter function in the transmit path.

2. (Original) The RF components of claim 1 further characterized in that the antenna function in the receive path provides an antenna resonator that combines with a filter resonator of the filter function.

3. (Original) The RF components of claim 2 wherein in the antenna function of said receive path provides a plurality of antenna resonators that combine with a filter resonator in the receive path.

4. (Original) The RF components of claim 1 wherein said receive filtenna means is formed of one or more two-port devices.

5. (Original) The RF components of claim 1 wherein said transmit filtenna means is formed of one or more two-port devices.

6. (Original) The RF components of claim 1 wherein said receive filtenna means includes a two-port device optimized for a receive frequency band and wherein said transmit filtenna means includes a two-port device optimized for a transmit frequency band.

7. (Original) The RF components of claim 1 wherein said communication device is a multiband device and wherein said receive filtenna means includes a different receive filtenna for each band and wherein said transmit filtenna means includes a different transmit filtenna for each band.

8. (Original) The RF components of claim 1 wherein said communication device is a multiband device having a plurality of bands and wherein a plurality of filtennas are provided including a receive filtenna and a transmit filtenna for each of said bands.

9. (Original) The RF components of claim 1 wherein said communication device is a mobile telephone.

10. (Original) The RF components of claim 9 wherein said mobile telephone is of small volume of approximately 4 inches by 2 inches by 1 inch or smaller and both said receive filtenna means and said transmit filtenna means fit within said small volume.

11. (Original) The RF components of claim 1 wherein said receive filtenna means is characterized by a 2×

2 receive scattering matrix, S^R, formed of receive parameters s^R₁₁, s^R₁₂, s^R₂₁ and s^R₂₂.

12. (Original) The RF components of claim 1 wherein said transmit filtenna means is characterized by a 2×

2 transmit scattering matrix, S^T, formed of transmit parameters s^T₁₁, s^T₁₂, s^T₂₁ and s^T₂₂.

13. (Original) A communication device including base components and RF components for an RF front end of said communication device where the RF front end includes,

for a receive path,

a receive antenna function for converting between radiated and electronic signals, includes a filter function for limiting the electronic signals within operating frequency bands of the receive path of the communication device, an amplifier function for amplifying the electronic signals in the receive path and a mixer function for shifting the electronic signals in the receive path between RF and lower frequencies, said functions connected at junctions in the receive path of said RF front end to enable processing of the receive electronic signals,

for a transmit path,

a mixer function for shifting the electronic signals from lower frequencies to the RF frequencies in the transmit path, an amplifier function for amplifying the electronic signals in the transmit path, a filter function for limiting the electronic signals within operating frequency band of the transmit path of the communication device and a transmit antenna function for converting between electronic signals in the transmit path to radiated signals, said functions connected at junctions in the transmit path of said RF front end to enable processing of the transmit electronic signals,

the improvement characterized by,

said RF components,

for said receive path, integrating said antenna function and said filter function forming receive filtenna means characterized by integrated junction parameters for a combination of the antenna function and the filter function in the receive path,

for said transmit path, integrating said antenna function and said filter function forming transmit filtenna means characterized by integrated junction parameters for a combination of the antenna function and the filter function in the transmit path.

14. (Original) The communication device of claim 13 further characterized in that the antenna function in the receive path provides an antenna resonator that combines with a filter resonator of the filter function.

15. (Original) The communication device of claim 14 wherein in the antenna function of said receive path provides a plurality of antenna resonators that combine with a filter resonator in the receive path.

16. (Original) The communication device of claim 13 wherein said receive filtenna means is formed of one or more two-port devices.

17. (Original) The communication device of claim 13 wherein said transmit filtenna means is formed of one or more two-port devices.

18. (Original) The communication device of claim 13 wherein said receive filtenna means includes a two-port device optimized for a receive frequency band and wherein said transmit filtenna means includes a two-port device optimized for a transmit frequency band.

19. (Original) The communication device of claim 13 wherein said communication device is a multiband device and wherein said receive filtenna means includes a different receive filtenna for each band and wherein said transmit filtenna means includes a different transmit filtenna for each band.

20. (Original) The communication device of claim 13 wherein said communication device is a multiband device having a plurality of bands and wherein a plurality of filtennas are provided including a receive filtenna and a transmit filtenna for each of said bands.

21. (Original) The communication device of claim 13 wherein said communication device is a mobile telephone.

22. (Original) The communication device of claim 21 wherein said mobile telephone is of small volume of approximately 4 inches by 2 inches by 1 inch or smaller and both said receive filtenna means and said transmit filtenna means fit within said small volume.

23. (Original) The communication device of claim 13 wherein said receive filtenna means is characterized by a 2×

2 receive scattering matrix, S^R, formed of receive parameters s^R₁₁, s^R₁₂, s^R₂₁ and s^R₂₂.

24. (Original) The communication device of claim 13 wherein said transmit filtenna means is characterized by a 2×

2 transmit scattering matrix, S^T, formed of transmit parameters s^T₁₁, s^T₁₂, s^T₂₁ and s^T₂₂.