Combined switch and receive tuner for enhanced LTE-TDD system
First Claim
1. An antenna tuner unit (ATU) comprising:
- a transmit/receive (T/R) switch having a receive (RX) throw; and
a receive only antenna tuner circuit having at least one tuning element integrated with the T/R switch on a die, wherein the receive only antenna tuner circuit is directly coupled to the RX throw of the T/R switch.
4 Assignments
0 Petitions
Accused Products
Abstract
An antenna tuner unit (ATU) that includes a T/R switch integrated with a receive only tuner circuit that is made up of a relatively tiny tuner circuitry is provided. The integration of the T/R switch with the receive only tuner circuit uses a microelectronics fabrication technology like silicon-on-insulator (SOI) with minimum cascading stages. As a result, the ATU of the present invention avoids a relatively complicated and expensive technology like Micro-electromechanical systems (MEMS). The ATU of the present disclosure is applicable to fourth generation (4G) standards like long term evolution time division duplex (LTE-TDD) or for a receiver diversity system such as a multiple-input and multiple-output (MIMO) system. The control of the receive only tuner circuit is accomplished via a relatively simple one-wire general input output (GPIO) thus allowing interface with most existing or future 4G transceiver products.
14 Citations
41 Claims
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1. An antenna tuner unit (ATU) comprising:
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a transmit/receive (T/R) switch having a receive (RX) throw; and a receive only antenna tuner circuit having at least one tuning element integrated with the T/R switch on a die, wherein the receive only antenna tuner circuit is directly coupled to the RX throw of the T/R switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile terminal comprising:
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at least one antenna; an antenna tuner unit (ATU) comprising; a transmit/receive (T/R) switch having a receive (RX) throw communicatively coupled to the at least one antenna; a receive only antenna tuner circuit having at least one tuning element integrated with the T/R switch on a die, the receive only antenna tuner circuit being directly coupled to the RX throw of the T/R switch, wherein the at least one tuning element is programmable tuning element; and a controller adapted to program the at least one tuning element. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A diversity antenna system comprising:
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a diversity receive antenna; a transmit and receive (T/R) antenna; and an antenna tuner unit (ATU) comprising; a receive only switch having a receive (RX) throw; and a receive only antenna tuner circuit having at least one tuning element integrated with the receive only switch on a die, the receive only switch being directly coupled to the RX throw, wherein the receive only antenna tuner circuit is communicatively coupled to the diversity receive antenna through the receive only switch. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A transceiver interface comprising:
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an antenna; and an antenna tuner unit (ATU) comprising; a transmit and receive (T/R) switch having a receive (RX) throw; and a receive only antenna tuner circuit having at least one tuning element integrated with the T/R switch on a die, the receive only antenna tuner circuit being directly coupled to the RX throw, wherein the receive only antenna tuner circuit is communicatively coupled to the antenna through the T/R switch. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification