Notch antenna and wireless device
AssigneeSony Ericsson Mobile Communications Japan, Inc.
InventorHideaki SHOJI
Life of this patent
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Abstract
A notch antenna includes a ground conductor having a slit and a reactance circuit containing a capacitive reactance element and an inductive reactance element, the reactance circuit being placed at an open end of the slit so as to bridge the slit and being connected to the ground conductor. The slit has a closed end to which power is supplied, and the capacitance of the capacitive reactance element and the inductance of the inductive reactance element are set so that the reactance circuit has a capacitance desired to obtain a first antenna resonance point at a first frequency and a capacitance desired to obtain a second antenna resonance point at a second frequency.
Claims9
A notch antenna comprising:
- a ground conductor including a slit;
- and
- a reactance circuit including a capacitive reactance element and an inductive reactance element, the reactance circuit being placed at an open end of the slit so as to bridge the slit and being connected to the ground conductor, wherein
- the slit has a closed end to which power is supplied, and
- the capacitance of the capacitive reactance element and the inductance of the inductive reactance element are set so that the reactance circuit has a capacitance desired to obtain a first antenna resonance point at a first frequency and a capacitance desired to obtain a second antenna resonance point at a second frequency.
A wireless device comprising:
- a notch antenna;
- and
- a feeding means supplying power to the notch antenna, wherein
- the notch antenna includes
- a ground conductor including a slit and
- a reactance circuit including a capacitive reactance element and an inductive reactance element, the reactance circuit being placed at an open end of the slit so as to bridge the slit and being connected to the ground conductor, wherein
- the slit has a closed end to which power is supplied, and
- the capacitance of the capacitive reactance element and the inductance of the inductive reactance element are set so that the reactance circuit has a capacitance desired to obtain a first antenna resonance point at a first frequency and a capacitance desired to obtain a second antenna resonance point at a second frequency.
A wireless device comprising:
- a notch antenna;
- and
- a feeding unit supplying power to the notch antenna, wherein
- the notch antenna includes
- a ground conductor including a slit and
- a reactance circuit including a capacitive reactance element and an inductive reactance element, the reactance circuit being placed at an open end of the slit so as to bridge the slit and being connected to the ground conductor, wherein
- the slit has a closed end to which power is supplied, and
- the capacitance of the capacitive reactance element and the inductance of the inductive reactance element are set so that the reactance circuit has a capacitance desired to obtain a first antenna resonance point at a first frequency and a capacitance desired to obtain a second antenna resonance point at a second frequency.
Dependencies are inferred from the claim text.