The ornamental design for a pictureframeantenna, as shown and described.
FIG. 1 is a perspective view of the picture frame antenna, showing our new design;
FIG. 2 is a back perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a back elevation thereof;
FIG. 5 is a right elevation view thereof;
FIG. 6 is a left elevation view thereof.
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is an exploded perspective view thereof showing an exemplary antenna element in broken lines that may be coupled to an inner surface of the back plate and disposed within an interior defined by the picture frame antenna.
In the drawings, the details shown in broken lines depict environmental subject matter only and form no part of the claimed design. Accordingly, the antenna element, coaxial cable, and four sliding features adjacent the four corners of the back plate for holding the back plate in place are shown in broken lines as they form no part of the claimed design.