 
 <prompt> Wetin feedpoint impedance need? Given di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Resonant antennas dey expect make dem use around one particular resonant frequency; antenna gats therefore dey build or order to match the frequency range of the intended application. One particular antenna design go show one particular feedpoint impedance. While this fit affect the choice of antenna, antenna impedance fit also fit adapt to the desired impedance level of one system using one matching network while still dey maintain the other characteristics (except for possible loss of efficiency). 