梳状线微带滤波器设计.pdf

Application Note Using Serenade Wireless Design Suite to Design a Microstrip Hairpin Filter for the 1900MHz Wireless PCS Band. by Luigi Greco, Ph.D. Applications Engineer Abstract Background This application note discusses the design procedure for Lumped element filters are impractical for compact a 1900MHz PCS microstrip hairpin filter using Serenade designs of wireless communications equipment, Wireless Design Suite. The design procedure includes especially hand-held devices. Distributed element filter entering the schematic of the filter, simulation, design offers a much smaller area and profile. With the optimization and layout. advent of advanced substrate materials offering very high dielectric constants with low loss, the size reduction Introduction with preserved efficiency is greatly enhanced. The In today’s fast-growing wireless industry, time to market microstrip hairpin filter is ideal for microwave is critical. Smaller and less expensive units are frequencies thus facilitating fabrication. The theory becoming the norm and the use of CAD tools to quickly governing coupled distributed element filters will not be and accurately simulate the beh