A highly versatile beamforming ASIC for application in broad-band fixed wireless access systems

被引：1
|
作者：
Duan, JN [1 ]
Ko, LJ [1 ]
Daneshrad, B [1 ]
机构：
[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2000年 / 35卷 / 03期
关键词：
broad-band fixed wireless access; digital beamforming; multirate signal processing; variable-rate interpolation/decimation;
D O I：
10.1109/4.826822
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：
This paper presents the architecture and implementation of a highly versatile beamforming ASIC (VBASIC) for application in broad-band fixed wireless access systems. The architecture accommodates a large number of user-programmable parameters, which broaden the chip's application base to a variety of present and future systems for fixed wireless access. These features include: a) a novel structure for variable-rate interpolation that allows operation at an?, user specified symbol rate from 625 kBaud to 10 MBaud; b) operation in both the transmit and receive modes; c) support for arrays consisting of up to 64 elements; d) a unique shaping filter structure with programmable canonic signed digit coefficients; e) complete reconfiguration of all parameters on a per-time-slot basis; and f) digital intermediate-frequency interface. The resulting layout measures 7.1 mm on each side in the 0.6-mu m HPCMOS14 process and consists of a total of 787 987 transistors.
引用
收藏
页码：391 / 400
页数：10
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