Mobile wireless communications device comprising a top-mounted auxiliary input/output device and a bottom-mounted antenna

[Subject] The portable radio communication equipment including antenna composition which makes comparatively small equipment size possible, and also offers desired performance and comparatively low SAR value is offered. [Solution means] Portable radio communication equipment may contain a housing, the main dielectric substrate accommodated in the housing, the network supported by the main dielectric substrate, and the grounding plane conductor on a main dielectric substrate. Portable radio communication equipment may contain further the L form dielectric extension containing the perpendicular portion which spreads in the method of outside from a main dielectric substrate, and the overhang part which spreads above the contiguity part of a main dielectric substrate in the method of outside from a perpendicular portion. A main loop antenna conductor including at least one electric conduction trace may be located relatively on the overhang part of an L form dielectric extension so that a grounding plane may not be overlapped. [Selection figure] Fig. 3