Conical Monopole Antenna with Integrated Tunable Notch Cavity Filters

As wireless communication systems are allocated more spectrum, and use digitally configurable transceivers, there is a stronger impetus to use a single broadband antenna. However, broadband antennas are susceptible to interference or radiating out-of-band emissions, so filtering is commonly required before RF front ends. As such, a broadband conical monopole antenna with integrated physically tunable notch cavity filters is presented. By simulation, the proposed antenna is shown to have an azimuthally symmetric radiation pattern and notch-filters that have very wide tuning ranges, resulting in a versatile broadband antenna.