SMALL-SIZE ANTENNA FOR PORTABLE RADIO COMMUNICATION DEVICE Russian patent published in 2002 - IPC

FIELD: portable radio communication devices such as bidirectional pagers. SUBSTANCE: antenna of one of proposed alternatives has radiator in the form of loaded monopole and grounded radiator. Radiator in the form of loaded monopole has first and second conductors deposited onto substrate of printed-circuit board. First conductor has predetermined length and is positioned horizontally. Second conductor is shaped as meander line and positioned vertically. Grounded radiator has separate first and second ground terminals in bottom part of printed-circuit board substrate both being symmetrical to second conductor. EFFECT: reduced size and enhanced gain. 14 cl, 9 dwg