Self-biased Receiver System
- 技術優勢
- 1. The system can be operated by DC power converted from the rectenna, giving it a very long operational lifetime 2. The system can be efficiency designed for a compact rectenna and an RF receiver without bandpass filters 3. The multi-function use of a single antenna reduces the overall size and complexity of the entire system 4. The receiver is based on the self-heterodyne scheme, which eliminates a power-hungry oscillator 5. Separate circuits for RF and DC power generation are no longer needed, as both functions are integrated into a single circuit structure
- 技術應用
- 1. Low power, short-range wireless sensors, such as: a. RF Tags b. Security access systems
- 詳細技術說明
- This innovation is the first rectenna technology proposed for small-scale personal use. The device receives a microwave or RF signal sent by a transmitter and the received power is delivered to a microwave or RF receiver and also to a rectenna. The receiver recovers the transmitted data or voice signals while the rectenna generates DC power to be supplied to the receiver. This reduces the demand on the DC power supply, which results in longer battery life.
- *Abstract
-
UCLA researchers in the Department of Electrical Engineering have developed a self-biased receiver system with a dual branch architecture consisting of a lower-power consumption receiver and a rectenna. The use of DC power converted from the rectenna gives the system an extraordinarily long operational lifetime.
- *IP Issue Date
- Dec 14, 2010
- *Principal Investigation
-
Name: Sang-min Han
Department:
Name: Tatsuo Itoh
Department:
Name: Ji-Yong Park
Department:
- 附加資料
- Patent Number: US7853223B2
Application Number: US2006442267A
Inventor: Han, Sang-min | Park, Ji-yong | Itoh, Tatsuo
Priority Date: 24 Oct 2005
Priority Number: US7853223B2
Application Date: 30 May 2006
Publication Date: 14 Dec 2010
IPC Current: H04B000106 | H04B000700 | H04M000100
US Class: 455130 | 343702 | 455269 | 4555757 | 343402
Assignee Applicant: Samsung Electronics Co. Ltd.,Suwon-si | The Regents of the University of California
Title: Self-biased receiver system using a multi-fed antenna
Usefulness: Self-biased receiver system using a multi-fed antenna
Summary: For use in small-sized device.
Novelty: Receiver system for use in small-sized device, comprises first port(s) connected to electronic circuit, and second port connected to feeder feeding direct current voltage to electronic circuit
- 主要類別
- 電子
- 細分類別
- 電路設計
- 申請號碼
- 7853223
- 其他
-
State of Development
A prototype system has been designed, implemented, and verified. The system is efficiently integrated together with a dual-fed circular sector antenna. The receiver has been designed using a low-noise amplified (LNA) with low power consumption and a self-heterodyne mixer. The rectenna achieves high conversion efficiency up to 80% as a result of the harmonic rejection of the circular sector antenna. The rectified DC power from the rectenna is applied for a bias of the LNA without any external bias. Simultaneously an ASK digital signal demodulator without extra power supply has been implemented successfully.
Background
Conventional rectenna systems have been developed for large power reception and efficient power conversion. Applications of this technology are typically large power transfer systems, which require a large-scale array.
Additional Technologies by these Inventors
- Low-Profile, Cavity-Backed Slot Antenna Using a High Impedance Reflector
- Backfire-to-endfire Leaky-wave Antenna
- Miniaturized Split Ring Resonator Planar Antenna
- Polarization Standing Wave Cavity Assisted By Anisotropic Structures
Tech ID/UC Case
20492/2005-682-0
Related Cases
2005-682-0
- 國家/地區
- 美國
