 
 <prompt> "Where thin tubes fit enter? Based on di last question, write one context wey contain di answer." <response>: Instead, e dey often make sense to get antenna wey e impedance no dey change too much over certain bandwidth. E come be say the amount of reactance wey you go see for the terminals of a resonant antenna when the frequency dey shift, like by 5%, e dey depend well well on the diameter of the conductor wey dem use. A long thin wire wey dem use as half-wave dipole (or quarter wave monopole) go get reactance wey dey plenty pass the resistive impedance wey e get for resonance, wey go cause poor match and generally unacceptable performance. If dem use tube wey diameter fit be like 1/50 of e length, e go reduce the reactance for the altered frequency wey no go too much, and e go reduce the mismatch wey go only small-small affect the antenna's net performance. So dem dey use thick tubes for the solid elements of such antennas, including Yagi-Uda arrays. 