A radio frequency communication device and methods of testing and tuning
an antenna attached thereto are disclosed. A radio frequency
communication device comprises internal circuitry and an antenna having a
plurality of antenna segments associated therewith. Each antenna segment
is associated with the antenna in either series or parallel relation
through at least one of a fuse and an antifuse. In testing and tuning, a
comparison is made to indicate whether the antenna is too short or too
long. If the antenna is too short, an antenna segment may be attached to
the antenna by initiating an antifuse. If the antenna is too long, an
antenna segment may be detached from the antenna by blowing a fuse. If it
is indeterminate whether the antenna is too short or too long, an antenna
segment may be either attached or detached, the test repeated, and the
results of the repeated test compared with the prior test to determine
whether the correct action was taken.