Mobile wireless communications device including spaced apart elongate members for reducing SAR and related methods

A mobile wireless communications device comprising:

• a portable housing;
• wireless transceiver circuitry carried by said portable housing and comprising an electrical ground;
• an antenna carried by said portable housing and coupled to said wireless transceiver circuitry;
• a light source carried by said portable housing;
• and
• a keyboard assembly carried by said portable housing and comprising
• a light guide coupled to said light source and having a plurality of input key receiving openings therein,
• a mask carried by said light guide and having a plurality of input key receiving openings therein aligned with the plurality of input key receiving openings of said light guide, and
• a plurality of input keys within respective input key receiving openings of said light guide and said mask,
• said mask comprising a plurality of spaced apart electrically conductive elongate members and an opaque dielectric substrate supporting said plurality of spaced apart electrically conductive elongate members positioned relative to said antenna so as to reduce a Specific Absorption Rate value of the mobile wireless communications device,
• said plurality of spaced apart electrically conductive elongate members being electrically floating with respect to said electrical ground.