EE4101_M_BPFassign - EE4101 RF Communications - Assignment...

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EE4101 RF Communications - Assignment Page 1 of 3 N ATIONAL U NIVERSITY of S INGAPORE Faculty of Engineering Electrical & Computer Engineering Department EE4101 RF Communications Assignment DESIGN A MICROSTRIPLINE BAND-PASS FILTER 1 OBJECTIVES a) To design a microstripline band-pass filter and simulate its frequency response using MDS. b) To fabricate the circuit on a fibre glass PCB and measure its frequency response. 2 TOPOLOGY OF THE FILTER A: SMA connector D: microstripline L< quarter wavelength B: 50 ohm microstripline E: microstripline C: chip capacitor F: via hole Fig.1 3 EQUIVALENT CIRCUIT Fig 2 is an equivalent circuit for the filter mentioned above, that will help you to have an intuitive understanding how the filter works.
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EE4101 RF Communications - Assignment Page 2 of 3 At microwave frequencies, a lumped capacitor cannot be considered to be a pure capacitance. It must include some parasitic elements. Fig. 3 is the equivalent circuit of a chip capacitor. It should be used in circuit simulation in order to get higher design accuracy. In
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EE4101_M_BPFassign - EE4101 RF Communications - Assignment...

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