US 12,255,399 B2
Antenna module, communication apparatus including the same, and circuit substrate
Hirotsugu Mori, Nagaokakyo (JP); Tadashi Sugahara, Nagaokakyo (JP); and Kengo Onaka, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Dec. 7, 2021, as Appl. No. 17/543,758.
Application 17/543,758 is a continuation of application No. PCT/JP2020/017024, filed on Apr. 20, 2020.
Claims priority of application No. 2019-106776 (JP), filed on Jun. 7, 2019.
Prior Publication US 2022/0094074 A1, Mar. 24, 2022
Int. Cl. H01Q 21/06 (2006.01); H01Q 1/22 (2006.01); H01Q 1/48 (2006.01); H01Q 5/385 (2015.01); H01Q 21/00 (2006.01); H01Q 21/24 (2006.01); H04B 1/00 (2006.01)
CPC H01Q 21/065 (2013.01) [H01Q 1/2283 (2013.01); H01Q 5/385 (2015.01); H01Q 21/0006 (2013.01); H01Q 21/24 (2013.01); H04B 1/0057 (2013.01); H01Q 1/48 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An antenna module comprising:
a first radiation element having a planar shape;
a second radiation element having a planar shape and arranged adjacent to the first radiation element;
a first filter connected to the first radiation element; and
a second filter distinct and separate from the first filter, and connected to the second radiation element, wherein
each of the first filter and the second filter includes a plurality of resonant lines not connected to each other,
each of the first filter and the second filter is arranged between the first radiation element and the second radiation element so as to cross a virtual line equidistant from the first radiation element and the second radiation element when the antenna module is viewed in plan from a normal direction,
a direction toward the second radiation element from the first radiation element is defined as a first direction,
the first filter and the second filter are arranged side-by-side in a second direction different from the first direction,
each of the first radiation element and the second radiation element is provided with a first feeding point at a position offset in the second direction from a center point of a corresponding radiation element,
the first filter is arranged further on the second direction side with respect to the first feeding point of the first radiation element, and
the second filter is arranged in a direction opposite to the second direction with respect to the first feeding point of the second radiation element.