Portable radio and telephones having notches therein

A portable radio equipment comprising:

• an antenna for transmitting and receiving an electromagnetic wave;
• a housing on which the antenna is mounted;
• means disposed in the housing for varying a distribution pattern of the electromagnetic wave;
• and
• means connected to the antenna by way of the housing for generating and receiving the electromagnetic wave.

A portable radio, comprising:

• an antenna for transmitting and receiving an electromagnetic wave;
• a housing on which the antenna is mounted, said housing including means for varying a distribution pattern of the electromagnetic wave, said means for varying operating without being supplied electromagnetic energy thereto;
• and
• means disposed within the housing and connected to the antenna for generating and receiving the electromagnetic wave.

A portable radio comprising:

• an antenna for transmitting and receiving an electromagnetic wave;
• a shielding housing on which the antenna is mounted, said shielding housing shielding the electromagnetic wave from passing to an interior volume of the shielding housing;
• a notch formed in the shielding housing which reduces a radio frequency current flowing through the shielding housing attributable to a radiation of the electromagnetic wave;
• and
• an internal circuit disposed within the shielding housing and connected to the antenna by way of the shielding housing for generating and receiving the electromagnetic wave,
• wherein the antenna is disposed outside of the notch.

A portable radio equipment comprising:

• an antenna for transmitting and receiving an electromagnetic wave;
• and
• a housing divided into an upper portion and a lower portion, the upper portion of the housing being connected to the antenna, the lower portion of the housing being connected electrically to the upper portion of the housing via a conductor wire,
• wherein the upper portion is approximately a quarter wavelength long, and the conductor wire is disposed at a distance of approximately a quarter wavelength from a side edge of the lower portion.

A portable radio equipment, comprising:

• a first shielding housing which shields electromagnetic waves from passing to an interior volume of said first shielding housing, said first shielding housing having a notch which also shields the electromagnetic waves from passing to said interior volume;
• a second shielding housing disposed within said first shielding housing, said second shielding housing being formed without the notch therein;
• an internal circuit, disposed within said second shielding housing, for generating and receiving electromagnetic waves;
• and
• an antenna connected to the internal circuit, mounted outside of the first shielding housing and disposed outside of said notch for transmitting and receiving the electromagnetic wave.