Antenna impedance matching device and method for a portable radio telephone
作者： Hong Joo Kim
DOI:
关键词:
摘要: A device for matching an antenna impedance in a portable radio telephone having transmission and receiving circuits, foldable casing enclosing the radio, movable between unfolded position folded position, extracted from retracted into includes means sensing whether is providing signal response thereto, of to signal, thereby making optimal impedances according states folder casings antenna, transmission/reception mode.
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