| 摘要 |
A telephone handset 1 has an omnidirectional antenna 2 and a non-omnidirectional antenna 3, the latter being configured to minimize radiation into the human head when in use. A proximity switch 6 detects whether the phone is being held against the user's head or is in hands free mode and connects up the appropriate antenna, ie omnidirection for hands free use and non-omnidirectional for handheld use. |
