APPARATUS FOR COMMUNICATION USING SIMPLEX ANTENNAS

• US 20140334361A1
• Filed: 05/13/2013
• Published: 11/13/2014
• Est. Priority Date: 05/13/2013
• Status: Abandoned Application

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Inventors: Nagode, Thomas D., Klomsdorf, Armin W., Smith, Hugh K.
• Application Number:
  US13/892,615
• Publication Number:
  US 20140334361A1
• Time in Patent Office: Days
• US Class Current: 370/281
• CPC Class Codes: H04B 1/0458 Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages matching circuits in general H03H
• CPC Class Codes: H04B 1/0475 with means for limiting noise, interference or distortion H04B1/0483 takes precedence
• CPC Class Codes: H04B 1/38 Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
• CPC Class Codes: H04B 1/525 with means for reducing leakage of transmitter signal into the receiver
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex

Abstract

An apparatus comprises a duplexer having a transmit port, a receive port, and an antenna port. A transmitter is coupled to the antenna port of the duplexer. A transmit antenna is coupled to the transmit port of the duplexer. The apparatus may comprise a matching termination coupled to the receiver port.

Claims

1. An apparatus, comprising:

a duplexer having a transmit port, a receive port, and an antenna port;

a transmitter coupled to the antenna port of the duplexer; and

a transmit antenna coupled to the transmit port of the duplexer.

2. The apparatus according to claim 1, further comprising a matching termination coupled to the receiver port.

3. The apparatus according to claim 1, wherein the duplexer is a passive electrical device.

4. An apparatus for radio communications, comprising:

a duplexer having a transmit port, a receive port, and an antenna port;

a transmitter coupled to the antenna port of the duplexer;

a transmit antenna coupled to the transmit port of the duplexer; and

a first receive antenna coupled to a first receive filter.

5. The apparatus according to claim 4, further comprising a matching termination coupled to the receiver port.

6. The apparatus according to claim 4, wherein the duplexer is a passive electrical device.

7. The apparatus according to claim 4, wherein the first receive filter has a frequency passband that accommodates a receive frequency band of a radio communication system and the duplexer comprises a receive filter that has a passband that accommodates the frequency band of the communication system.

8. An apparatus for duplex radio communications, comprising:

a duplexer having a transmit port coupled to a transmit filter portion, a receive port coupled to a receive filter portion and an antenna port coupled to the transmit and receive filter portions, wherein the receive filter portion has a passband that accommodates receive frequency band of a communication system;

a transmitter coupled to the antenna port of the duplexer;

a transmit antenna coupled to the transmit port of the duplexer;

a first receive antenna coupled to a first receive filter that has a passband that accommodates the receive frequency band of the communication system; and

a second receive antennas, coupled to a second receive filter that has a passband that accommodates the receive frequency band of the communication system.

9. The apparatus according to claim 8, further comprising a matching termination coupled to the receiver port.

10. The apparatus according to claim 8, wherein the duplexer is a passive electrical device.

11. The apparatus according to claim 8, further comprising one or more additional receive antennas, each coupled to one of one or more respective additional receive filters.

12. The apparatus according to claim 8, wherein the additional receive antennas operate at a same receive frequency range as the first antenna receiver.

13. The apparatus according to claim 8, further comprising a transmit matching network that is coupled between the transmit antenna and the transmit port of the duplexer.

14. The apparatus according to claim 8, further comprising a receive matching network that is coupled between the first receive antenna and the first receiver.

15. The apparatus according to claim 8, wherein the duplexer has transmit and receive passbands at transmit and receive frequencies ranges specified for use in at one of LTE and CDMA cellular systems.