Industry News

Ansoft Releases Nexxim v4 And Ansoft Designer v4

Ansoft Corp. has released new versions of Nexxim®, the company's high-capacity circuit simulation software, and Ansoft Designer®, its integrated schematic and design management software. The products include new statistical analysis and transient simulation capabilities that allow engineers to rapidly simulate high-speed serial channel behavior. This eliminates prototype iterations that...
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Design of a Four Feeding Microstrip Patch Antenna

A four feeding microstrip antenna operating at 2.0 GHz and match to a 50Ω impedance is designed to combine the power externally in wireless communication. The antenna is designed using Agilent’s Advanced Design System (ADS) and Computer Simulation Technology (CST) simulation tools. After fabricating the antenna, the S-parameter, radiation...
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Performance Analysis of OFDM

Introduction Orthogonal Frequency-Division Multiplexing (OFDM) — essentially identical to Coded OFDM (COFDM) — is a digital multi-carrier modulation scheme, which uses a large number of closely-spaced orthogonal sub-carriers. Each sub-carrier is modulated with a conventional modulation scheme (such as quadrature amplitude modulation) at a low symbol rate, maintaining data...
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Recent Advances in Fresnel Zone Plate Antenna Technology

This paper outlines some of the recent advances in Fresnel zone plate antenna technology. Sidelobe reduction and control over sidelobe location are two developments, which are useful for interference reduction. Another development is the focusing resolution of Fresnel zone plate antennas for sub-wavelength focal distances. Designs will be given...
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