How Coarse is Too Coarse in Electrically Large Reflectarray Smart Antennas? A phase quantization case study at millimeter wave bands

被引：0

作者：

Ahmad, Ghulam ^{[1
]}

Brown, Tim W. C. ^{[1
]}

Underwood, Craig I. ^{[1
]}

Loh, Tian Hong ^{[2
]}

机构：

[1] Univ Surrey, FEPS, Guildford, Surrey, England

[2] Natl Phys Lab, Time Quantum & Electromagnet Div, Teddington, Middx, England

来源：

2017 INTERNATIONAL WORKSHOP ON ELECTROMAGNETICS: APPLICATIONS AND STUDENT INNOVATION COMPETITION (IEEE IWEM 2017) | 2017年

关键词：

Smart antennas; reflectarray; phase quantization; high gain antennas; millimeter waves;

D O I：

暂无

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：

Millimeter wave (mm-wave) bands are becoming potentially attractive candidates for next generation communication systems. It is envisioned that high gain smart antennas will be one of the key enabling technologies for such systems. At mm-wave bands, where electrical size of an individual antenna becomes very small, the inclusion of a reconfigurable mechanism in the antenna becomes a great challenge due to real estate constraints. In these scenarios a designer has to decide on the number of bits in a phase shifter for antenna beam steering which will result in an optimum design. This contribution addresses the issue of phase quantization in mm-wave high gain reflectarray smart antennas to achieve an optimum performance. Implementing coarse phase quantization greatly reduces the complexity at mm-wave bands. A case study is presented to highlight the effects of coarse phase quantization using various numbers of bits.

引用

页码：135 / 137

页数：3