Antenna and radio communication apparatus
AssigneeMurata Manufacturing Co., Ltd.
InventorsAkira Miyata, Kazunari Kawahata
Life of this patent
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Abstract
An antenna includes a parallel resonant circuit disposed in a non-ground region. The parallel resonant circuit includes a parallel radiation electrode pattern that is patterned in the non-ground region and a surface mount antenna component. The parallel radiation electrode pattern is connected in parallel to the surface mount antenna component. The parallel radiation electrode pattern is arranged in a loop so as to occupy the majority of the non-ground region and defines an inductor of the parallel resonant circuit. A pair of electrodes of the surface mount antenna component defines a capacitor having a capacitance corresponding to a distance between the pair of electrodes.
Claims12
An antenna comprising:
- a mount board having a non-ground region;
- a parallel resonant circuit provided in the non-ground region, the parallel resonant circuit including a surface mount antenna component including a substrate and at least a pair of electrodes arranged on a surface of the substrate so as to face each other with a predetermined distance therebetween to define a capacitor, and a parallel radiation electrode pattern having an inductor and a feed electrode, the parallel radiation electrode pattern being connected in parallel to the capacitor;
- and
- a first lumped-constant inductor connected to or included in the parallel resonant circuit.
Dependencies are inferred from the claim text.