Design of a tunable stopband patch filter for microwave applications

• Grant number: 12/10843-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2012
• End date: September 30, 2013
• Field of knowledge: Engineering - Electrical Engineering - Electrical, Magnetic and Electronic Circuits
• Principal Investigator: Ariana Maria da Conceicao Lacorte Caniato Serrano
• Grantee: Julio Mota Pinheiro
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This Scientific Initiation proposes the development of a tunable stopband filter (SBF) using patch resonators at microwave frequencies for WiMax/Wifi applications. The SBF will be electronically tuned by varactors or MEMSs, to be defined along with the work. The design of the SBF involves the use of the 3D full-wave electromagnetic simulator ADS/Momentum for both electromagnetic and electrical stimulation of the filter integrated into the tuning component. The proposed filter will be fabricated in planar technology, known for its easy fabrication, easy integration with other circuits, and low-cost process. The filter will be designed, fabricated, and assembled at the laboratory, followed by its characterization at microwave frequencies. Finally, the SBF performance, size, and complexity will be compared to the simulated results and the ones presented in the current international literature. The work will be all developed at the Microwave Group of the Laboratory of Microelectronics (LME) of the Polytechnic School of USP.(AU)