US 11,721,886 B1
Vehicle antenna capable of operating in multiple frequency ranges and automobile antenna device
Chih-Wei Liao, New Taipei (TW); Ching-Ling Wu, New Taipei (TW); Hsiang-Neng Wen, New Taipei (TW); Yung-Yu Tai, New Taipei (TW); and Jia-Hung Hsiao, New Taipei (TW)
Assigned to Futaijing Precision Electronics (Yantai) Co., Ltd., Yantai (CN); and HON HAI PRECISION INDUSTRY CO., LTD., New Taipei (TW)
Filed by Futaijing Precision Electronics (Yantai) Co., Ltd., Yantai (CN); and HON HAI PRECISION INDUSTRY CO., LTD., New Taipei (TW)
Filed on Mar. 30, 2022, as Appl. No. 17/708,168.
Claims priority of application No. 202210160250.6 (CN), filed on Feb. 22, 2022.
Int. Cl. H01Q 1/32 (2006.01); H01Q 5/307 (2015.01); H04W 4/40 (2018.01)
CPC H01Q 1/3275 (2013.01) [H01Q 1/3208 (2013.01); H01Q 5/307 (2015.01); H04W 4/40 (2018.02)] 10 Claims
OG exemplary drawing
 
1. A multi frequency ranges vehicle antenna comprising:
a dielectric substrate;
a first antenna, a second antenna and a third antenna;
wherein the first antenna, the second antenna and the third antenna are vertically connected to the dielectric substrate and configured to electrically connect with a signal source, the first antenna, the second antenna and the third antenna are arranged in parallel, and the first antenna is positioned between the second antenna and the third antenna, an area of each of the second antenna and the third antenna in a direction towards the first antenna is less than an area of the first antenna, the first antenna is a 5G wideband antenna, working frequency bands of the first antenna comprises 2G, 3G, 4G and 5G frequency bands, working frequency bands of the second antenna and the third antenna are WiFi 6E, and the second antenna and the third antenna is compatible with V2X working frequency band simultaneously;
wherein the dielectric substrate is a FR4 printed circuit board, the dielectric substrate comprise a grounding metal surface, the dielectric substrate comprises a first signal feed line, a second signal feed line and a third signal feed line to electrically connect with the signal source, the first signal feed line, the second signal feed line and the third signal feed line are electrically connected with the first antenna, the second antenna and the third antenna respectively;
wherein the first antenna comprises a first feeding part, a first radiating part and two first grounding parts, the first feeding part is electrically connected to the first signal feeding line, and the first radiating part is connected with the first feeding part, the first radiating part comprises a first resonance unit and a second resonance unit, the second resonance part is connected to one end of the first resonance part away from the dielectric substrate;
wherein the second resonance part comprises a first sub resonance part, a second sub resonance part and a third sub resonance part, the first sub resonance part extends from a first edge of the first resonance part away from the dielectric substrate, the second sub resonance part is perpendicular to the first sub resonance part and extends towards a second edge of the first resonance part opposite to the first edge to form an opening between the first resonance part and the second resonance part, the third sub resonance part extends obliquely from an end of the second sub resonance part away from the first sub resonance part towards the first resonance part, the third sub resonance part partially shields the opening.