A radio antenna apparatus is provided with an antenna connected with a radio communication circuit that transmits and receives a radio signal. A load impedance element is connected between a parasitic element of an electrical conductor plate and a ground of a housing of a radio communication apparatus...http://www.google.com.au/patents/US6985113?utm_source=gb-gplus-sharePatent US6985113 - Radio antenna apparatus provided with controller for controlling SAR and radio communication apparatus using the same radio antenna apparatus