Extra exam question E9D11

WhyMost two-element Yagis with normal spacing use a reflector instead of a director because it delivers higher gain. Most two-element Yagis with normal element spacing use a reflector rather than a director because that combination delivers higher gain than an equivalent driven-element-plus-director arrangement at typical two-element spacings, answer D. It isn't primarily chosen for lower SWR, isn't specifically about receiving directivity factor, and while front-to-side performance is a real consideration in antenna design generally, higher gain is the specific, standard reason a reflector is the more common choice here.