English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In recent years, high-speed wireless communication is in vogue. In wirelesscommunication systems, multipath fading, delay and interference occurres byreflection or diffraction. In a high-speed wireless communication, it becomes anecessary to separate desired signal from delay or interference signal. Thus toovercome these problems Smart antenna systems have been developed. Basicallythere are two types of smart antenna systems, one is Switched beam system andanother Adaptive array system.This paper presents the optimum design of a 4x4plannar Butler matrix array as a key component of a switched beam smart antennasystem, operating at 5.2 GHz for WLAN with a dielectric substrate, FR4 of er=4.9 and h=1.6mm. Conception details, simulation results and measurements arealso given for the components (microstrip antenna, hybrid couplers,cross-coupler, phase shifter) used to implement the matrix. In thisdissertation, mathematical calculations for all the components using MATLAB isdone and then every individual component is designed using the commercialsoftware SONNET. Then these entire components have been combined on a singlesubstrate and simulated using SONNET.

Optimum Design of a 4x4 Planar Butler Matrix Array for WLAN Application