University:
California State University, East Bay
Course:
CS 3590 | Data Communications and Networking
Academic year:

2023
Views:

409

Pages:

2
Author:

Jithin J. I.

THE DUAL BAND NOTCH UWB ANTENNA Introduction  UWB approved from 3.1 to 10.6 GHz for commercial applications  Provides high data rates, low interference, low complexity  Interfering bands like WiMAX, WLAN exist in UWB spectrum Antenna Design  Compact elliptical monopole structure on FR4 substrate  Microstrip feedline excites radiating patch  Slotted ground plane for impedance matching Notch Band Design  λg/2 rectangular split ring resonators (R-SRR)  C-type R-SRR produces notch in WiMAX band  U-type R-SRR gives notch in X band Results  Return loss below -10 dB in UWB band  Notches created at WiMAX and X band frequencies  Gain below -5 dBi and efficiency below 20% in notched bands  Otherwise gain above 3 dBi and efficiency above 60% Conclusion  Elliptical monopole with slotted ground provides UWB response  R-SRR resonators introduce notches to suppress interference  Good impedance matching, gain and efficiency achieved  Compact filtering antenna eliminates undesired bands in UWB Key Highlights  Split ring resonators create notch bands to filter interference  Slotted ground helps improve impedance matching  Elliptical monopole suitable for achieving UWB characteristics  Notch bands and UWB response realized in a single compact antenna