Graduate Design Seminar Projects:

• "A 6 GHz Microstrip Chebyshev Low Pass Filter", 1996.
• "A 6 GHz Microstrip Maximally Flat (Butterworth) Low Pass Filter", 1996.

A 6 GHz Microstrip Chebyshev Low Pass Filter
by :   Thirendra Rayamajhi
Advisor :   Dr. Prasad N.Shastry
December 1996

ABSTRACT
   This project report contains the design, fabrication and performance evaluation of a Chebyshev Low Pass Filter. Analysis is done on a lumped circuit as per the design specifications and the lumped circuit is then converted to equivalent microstrip elements. It includes simulation of both models on HPEEsof CAD tools. The filter when fabricated and tested on Network Analyzer HP8722C had a ripple of 0.1dB, cutofff frequency of 5.8 GHz and an attenuation of 12.5dB at 9 GHz.

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A 6 GHz Microstrip Macimally flat (Butterworth) Low Pass Filter
by :   Sunil M.N.
Advisor :   Dr. Prasad N.Shastry
December 1996

ABSTRACT
   A 6 GHz Microstrip maximally flat (Butterworth) low pass filter is a filter in which the passband extends from f=0Hz to f=fc, where fc is the cutoff frequency, which is 6 GHz in our design. The following report describes paper design using both lumped elements and microstrip elements. A detailed design procedure using HPEEsof simulation software is included. A comparision of the results of circuit simulations and layout driven simulations are included and a brief description of tuning process is presented. Next, the fabrication technique and the explanation of the testing procedures using Network Analyzer is discussed. Finally the test results of the simulated and the fabricated Microstrip low pass filter are compared and contrasted.

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