One of the first things that an amateur radio operator is likely to do once receiving their license is grab a dual-band handheld and try to make contacts with a local repeater. After the initial ...

Cut, tighten, loosen, open, and twist your way through whatever challenges crop up.

Abstract: A novel dual-band and dual-circularly polarized microstrip antenna design for a small AAV or a low earth orbit (LEO) satellite applications at K/Ka-band is proposed in this paper. Utilizing ...

Abstract: Dual-band microstrip antenna (MSA) arrays are widely used in applications requiring high gains. However, obtaining aperture efficiencies in both bands simultaneously for a single-feed, ...