Directional antenna for hand-held wireless communications device
AssigneeSkyworks Solutions, Inc.
InventorsPaul A. Underbrink, Kelly H. Hale, Guang-Ming Yin, Patrick D. Ryan, Joseph H. Colles, Daryush Shamlou, Christian Levesque
Life of this patent
Estimating the term…
Abstract
A system for wireless communications is provided. The system includes a hand-held wireless communications device, such as a cell phone. An antenna is connected to the cell phone. The antenna radiates radio waves over an area of less than 360 degrees of arc, such as in a cardioid or hemisphere. The antenna is oriented such that hemisphere is in the direction away from a head of a user of the cell phone.
Claims20
A system for wireless communications comprising:
- a hand-held wireless communications device;
- an antenna coupled to the hand-held wireless communications device, the antenna configured to radiate with greater field intensity over an area of less than 360 degrees of arc;
- a transmitter amplifier coupled to the antenna, the transmitter amplifier having an output impedance that matches the impedance of the antenna, the impedance of the antenna determined by performing a finite element analysis on a design of the antenna to determine an estimated output impedance, and adjusting the antenna if the estimated output impedance does not approximately match the transmitter amplifier output impedance;
- and
- wherein the antenna is oriented such that the area of less than 360 degrees of arc is in the direction away from a head of a user of the hand-held wireless communications device.
A system for wireless communications comprising:
- a hand-held wireless communications device;
- a transmit antenna coupled to the hand-held wireless communications device;
- a transmitter amplifier coupled to the transmit antenna, the transmitter amplifier having an output impedance that matches an impedance of the transmit antenna, the impedance of the transmit antenna determined by performing a finite element analysis on a design of the transmit antenna to determine an estimated output impedance, and adjusting the area of the transmit antenna if the estimated output impedance does not approximately match the transmitter amplifier output impedance;
- and
- a receive antenna coupled to the wireless communications device.
A method for wireless communications comprising:
- modulating speech data onto an electromagnetic signal;
- transmitting the electromagnetic signal from a handheld device having an antenna that transmits with a greater field intensity over an area of less than 360 degrees of arc in a direction away from a head of a user;
- and
- wherein the antenna has an impedance that matches an output impedance of a transmitter amplifier of the handheld device, the impedance determined by performing a finite element analysis on a design of the antenna to determine an estimated output impedance, and adjusting the antenna if the estimated output impedance does not approximately match the transmitter amplifier output impedance.
A method for wireless communications comprising:
- determined the output impedance of a transmitter amplifier of a wireless device;
- performing a finite element analysis on a design of a patch antenna to determine an estimated output impedance;
- adjusting the area of the patch antenna if the estimated output impedance does not approximately match the transmitter amplifier output impedance;
- and
- providing the patch antenna for use with the wireless device.
Dependencies are inferred from the claim text.