QUESTION 2 SULIT (a) A low pass filter has a bandwidth of 0-15707.96 MCycle/sec, and at 4.5 GHz it has an insertion loss of 30 dB. By analyzing the equal ripple response method, illustrate a lumped-element filter with 3 dB equal-ripple with accurate values of the lumped elements. The first element for the filter should be a series element. [8 Marks] (b) A high pass filter has a theoretical bandwidth of 12.5663 GCycle/sec to GCycle/sec, and at 1GHz it has an insertion loss factor of 25.12x10-5. By analyzing the maximally flat response method, illustrate a lumped-element filter with accurate values of the all lumped elements. The first element for the filter should be a shunt element. [8 Marks] (C) The Celcom uses the GSM frequency band of 1720 MHz to 1920 MHz in Malaysia. It is undesirable to have any ripple in the pass band and the filter should have only 3 elements. Analyze this scenario and illustrate the schematic diagram with accurate values of the all lumped elements of a suitable filter that only allows the GSM frequency band and rejects all other frequencies. Consider the (T-combination). [9 marks] QUESTION 2 SULIT (a) A low pass filter has a bandwidth of 0-15707.96 MCycle/sec, and at 4.5 GHz it has an insertion loss of 30 dB. By analyzing the equal ripple response method, illustrate a lumped-element filter with 3 dB equal-ripple with accurate values of the lumped elements. The first element for the filter should be a series element. [8 Marks] (b) A high pass filter has a theoretical bandwidth of 12.5663 GCycle/sec to GCycle/sec, and at 1GHz it has an insertion loss factor of 25.12x10-5. By analyzing the maximally flat response method, illustrate a lumped-element filter with accurate values of the all lumped elements. The first element for the filter should be a shunt element. [8 Marks] (C) The Celcom uses the GSM frequency band of 1720 MHz to 1920 MHz in Malaysia. It is undesirable to have any ripple in the pass band and the filter should have only 3 elements. Analyze this scenario and illustrate the schematic diagram with accurate values of the all lumped elements of a suitable filter that only allows the GSM frequency band and rejects all other frequencies. Consider the (T-combination). [9 marks]