Active UHF/VHF antenna

An active antenna comprising:

• an antenna element disposed on a surface of a substrate, the antenna element extending between a first end and a second end, the antenna element including a serpentine portion positioned between the first end and the second end, the serpentine portion including a plurality of passes, the antenna element configured for multiple resonances in an ultra-high frequency (UHF) band or a very-high frequency (VHF) band;
• a parasitic element disposed on the surface of the substrate;
• a plurality of conductor elements disposed on the surface of the substrate, the plurality of conductor elements coupled between the antenna element and a ground plane, the plurality of conductor elements comprising a first conductor element coupled to the antenna element via a first filter and a second conductor element coupled to the first conductor element via a second filter;
• a first multi-port switch coupled between the ground plane and the plurality of conductor elements, the first multi-port switch configured to adjust a reactance of the antenna element;
• and
• a second multi-port switch coupled between the parasitic element and the ground plane, the second multi-port switch configured to adjust a reactance of the parasitic element.