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Group12 nadim ammar


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Group12 nadim ammar

  1. 1. EE5601 PROJECT Design of the Compact Dual-Band Bandpass Filter With High Isolation for GPS/WLAN ApplicationsYu-Chi Chang, Chia-Hsiung Kao, Min-Hang Weng<br />GROUP MEMBERS:<br />NADIM ISLAM AMMAR HUSSAIN KHAN STUDENT ID: 4111805STUDENT ID: 3759630<br />
  2. 2. Introduction<br />Dual-Band BPF using SIR (stepped impedance resonator) is designed as a novel method to fulfill the need in smaller multi-service wireless communication devices.<br />Dual passbands at 1.575 GHz (GPS) and 2.4 GHz (WLAN).<br />Small-size – 30.14mm x 21.16mm <br />High isolation between passbands – 55 dB<br />Wide upper stopband – 38 dB from 2.7 to 5.3 GHz<br />
  3. 3. Resonant Characteristic of the Asymmetric SIR with one step discontinuity <br />Input Admittance<br />Impedance Ratio<br />Length Ratio<br />
  4. 4. ‘Dual-Band’ Characteristic<br />Impedance Ratio<br />Length Ratio<br />GPS- 1.575 GHz<br />WLAN- 2.4 GHz<br />f1/f0 = 1.524<br />α = 0.625<br />
  5. 5. Simulated Circuit <br />Circuit simulated based on provided dimensions<br />
  6. 6. Frequency Response Comparison<br />Response from paper<br />(Simulations using IE3D)<br />Response from simulation<br />(Simulations using SONNET)<br />
  7. 7. Passbands Frequency Comparison<br />Paper<br />Paper<br />Our<br />Our<br />Passband at 1.575 GHz<br />Passband at 2.4 GHz<br />
  8. 8. THANK YOU<br />