1. The vertical plane radiation patterns are shown in the image at right. 2. Antennas : Dipole antennas; antenna arrays; radiation pattern ; reciprocity theorem, antenna gain. 3. Coupling 2, 3, and 4 SRRs side by side slightly shifts radiation patterns . 4. The radiation pattern is the locus of points with the same electrical field. 5. As one moves around, one gets a feel for the antenna radiation pattern . 6. Radiation patterns of antennas and their images reflected by the ground.7. The horizontal radiation pattern of an ARSR antenna is very narrow. 8. Usually a skew of "'? / 4 "'gives the desired almost-uniform horizontal radiation pattern . 9. By using more and more antennas, the radiation pattern can be made very precise. 10. But their radiation patterns ( and gains ) are identical.