A novel amplitude-phase weighting for analog microwave beamforming

被引：38

作者：

Farzaneh, Sadegh ^{[1
]}

Sebak, Abdel-Razik ^{[1
]}

机构：

[1] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2006年 / 54卷 / 07期

关键词：

amplitude and phase weighing; microwave beamforming; phased array antennas; smart antennas;

D O I：

10.1109/TAP.2006.877160

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A simple receiver and transmitter structure for smart antennas and phased array antennas is proposed. A new technique for amplitude and phase weighting in microwave domain is presented. Signals of different antenna elements are sampled using pulses with adjusted time delay and duty cycles. The first replica of the sampled signal is reconstructed to provide the proper phase shift and amplitude weighting. A new switch circuit is designed to improve the power efficiency of the proposed structure and to lower the effects of switching on the impedance matching. The effect of nonideal switching on the performance of the system is analyzed. Procedures are proposed to integrate the proposed structure with adaptive signal processing tasks. Signal to noise ratio of the structure is studied under different scenarios.

引用

页码：1997 / 2008

页数：12

共 37 条

[1]

[Anonymous], P AS PAC MICR C

[2] APPLICATION OF ORTHOGONAL PERTURBATION SEQUENCES TO ADAPTIVE BEAMFORMING [J].

CANTONI, A .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1980, 28 (02) :191-202

[3] COHERENT PERTURBATION ALGORITHM. [J].

Davis, Richard M. ;

Farden, David C. ;

Sher, Patrick J.-S. .

IEEE Transactions on Antennas and Propagation, 1986, AP-34 (03) :380-388

[4] Modified constant, modulus algorithm for digital signal processing adaptive antennas with microwave analog beamforming [J].

Denno, S ;

Ohira, T .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2002, 50 (06) :850-857

[5]

DENNO S, 2000, IEEE AER C BIG SKY A

[6]

DIPAOLO F, 1997, MICROWAVE J APR, P92

[7] An antenna diversity MMIC vector modulator for HIPERLAN with low power consumption and calibration capability [J].

Ellinger, F ;

Lott, U ;

Bächtold, W .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2001, 49 (05) :964-969

[8] Smart antennas based on spatial multiplexing of local elements (SMILE) for mutual coupling reduction [J].

Fredrick, JD ;

Wang, YX ;

Itoh, T .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2004, 52 (01) :106-114

[9] A smart antenna receiver array using a single RF channel and digital beamforming [J].

Fredrick, JD ;

Wang, YX ;

Itoh, T .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2002, 50 (12) :3052-3058

[10]

Godara L., 2004, EL EN AP SI

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