Abstract: A microstrip antenna positioned on a substrate includes a feeding portion, a grounding portion, and a radiating portion. The substrate includes a first surface and a second surface opposite to the first surface. The feeding portion is positioned on the first surface. The grounding portion is positioned on the second surface. The radiating portion is positioned on the first surface, and includes a first radiator, a second radiator in zigzag shape, and a third radiator. The first radiator includes a first radiating section and a second radiating section. The third radiator includes a third radiating section and a fourth radiating section. The first radiating section, the second radiating section, the second radiator, the third radiating section, and the fourth radiating section are perpendicular to one another connected one by one in sequence. The first radiator and the third radiator co-define a receiving area, and the second radiator is positioned in the receiving area.

Abstract: An ultra wideband antenna (20) is disposed on a substrate (10). The substrate includes a first surface (101) and a second surface (102). The ultra wideband antenna includes a radiation body (22), a feeding portion (26), and a grounded portion (28). The radiation body disposed on the first surface is used for transceiving electromagnetic signals. The radiation body includes a semicircle-shaped metal portion (222) and a rectangle-shaped metal portion (224) and defines a slot (24) starting at an edge therein. The feeding portion is electronically connected to the radiation body for feeding signals to the radiation body. The grounded portion is disposed on the second surface.

Abstract: A microstrip antenna positioned on a substrate includes a feeding portion, a grounding portion, and a radiating portion. The substrate includes a first surface and a second surface opposite to the first surface. The feeding portion is positioned on the first surface. The grounding portion is positioned on the second surface. The radiating portion is positioned on the first surface, and includes a first radiator, a second radiator in zigzag shape, and a third radiator. The first radiator includes a first radiating section and a second radiating section. The third radiator includes a third radiating section and a fourth radiating section. The first radiating section, the second radiating section, the second radiator, the third radiating section, and the fourth radiating section are perpendicular to one another connected one by one in sequence. The first radiator and the third radiator co-define a receiving area, and the second radiator is positioned in the receiving area.

Abstract: A MIMO antenna is disposed on a substrate. The substrate includes a first surface and a second surface. The MIMO antenna includes a first antenna and a second antenna set as mirror image to the first antenna, each of the first and the second antennas includes a radiation body, a feeding portion, and a grounded portion. The radiation portion is disposed on the first surface for transceiving electromagnetic signals. The radiation body includes a first radiation portion and a second radiation portion electronically connected to the first radiation portion. The first radiation portion is serpentine-shaped and the second radiation portion is rectangular-shaped. The feeding portion is disposed on the first surface, and electronically connected to the second radiation portion for feeding electromagnetic signals to the radiation body. The grounded portion is disposed on the second surface.

Abstract: A planar antenna disposed on a substrate (100) includes a metallic ground plane (200), a radiating part (300), an open-short transforming part (400), a joint portion (700), and a feeding part (500). The metallic ground plane is laid on the substrate. The radiating part transmits and receives radio frequency (RF) signals, and includes a first bent portion (320) and an open end (310). The first bent portion is electrically connected to the open end. The open-short transforming part is electrically connected between the radiating part and the metallic ground plane, and includes a second bent portion (430). The joint portion connects the open-short transforming part and the radiating part, and defines a recessed portion (701). The feeding part is electrically connected to the joint portion, for feeding signals.

Abstract: A MIMO antenna is disposed on a substrate. The substrate includes a first surface and a second surface. The MIMO antenna includes a first antenna and a second antenna set as mirror image to the first antenna, each of the first and the second antennas includes a radiation body, a feeding portion, and a grounded portion. The radiation portion is disposed on the first surface for transceiving electromagnetic signals. The radiation body includes a first radiation portion and a second radiation portion electronically connected to the first radiation portion. The first radiation portion is serpentine-shaped and the second radiation portion is rectangular-shaped. The feeding portion is disposed on the first surface, and electronically connected to the second radiation portion for feeding electromagnetic signals to the radiation body. The grounded portion is disposed on the second surface.

Abstract: An ultra wideband antenna (20) is disposed on a substrate (10). The substrate includes a first surface (101) and a second surface (102). The ultra wideband antenna includes a radiation body (22), a feeding portion (26), and a grounded portion (28). The radiation body disposed on the first surface is used for transceiving electromagnetic signals. The radiation body includes a semicircle-shaped metal portion (222) and a rectangle-shaped metal portion (224) and defines a slot (24) starting at an edge therein. The feeding portion is electronically connected to the radiation body for feeding signals to the radiation body. The grounded portion is disposed on the second surface.

Abstract: A MIMO antenna (10) disposed on a substrate (40) including a first surface (42) and a second surface (44). The MIMO antenna includes a first antenna (20) and a second antenna (30) each including a radiating body (26), a grounded body (28), a feeding portion (22) for feeding signals, and a pair of ground planes (24) laid on opposite sides of the feeding portion and electronically connected to the grounded body. The radiating body includes a first radiating portion (260) and a meandering second radiating portion (262) electronically connecting to the first radiating portion. The feeding portion is electronically connected to the second radiating portion. The radiating body, the ground planes, and the feeding portion are printed on the first surface of the substrate, and the grounded body is printed on the second surface of the substrate.

Abstract: A planar antenna disposed on a substrate (50) including a first surface (57) and a second surface (58). The planar antenna includes a radiating body (10) for transmitting and receiving radio frequency (RF) signals, a feeding portion (30) for feeding signals, and a metallic ground plane (50). The radiating body includes an angled gap (15) formed therein. The feeding portion is electrically connected to the radiating body. The radiating body and the feeding portion are laid on the first surface of the substrate. The ground plane is laid on the second surface of the substrate.

Abstract: A planar antenna disposed on a substrate (100) includes a metallic ground plane (200), a radiating part (300), an open-short transforming part (400), a joint portion (700), and a feeding part (500). The metallic ground plane is laid on the substrate. The radiating part transmits and receives radio frequency (RF) signals, and includes a first bent portion (320) and an open end (310). The first bent portion is electrically connected to the open end. The open-short transforming part is electrically connected between the radiating part and the metallic ground plane, and includes a second bent portion (430). The joint portion connects the open-short transforming part and the radiating part, and defines a recessed portion (701). The feeding part is electrically connected to the joint portion, for feeding signals.

Abstract: A UWB printed antenna (1) printed on a substrate (10) includes a body (100a) for radiating and receiving electromagnetic signals, a signal feeding part (400) for inputting electromagnetic signals to or outputting electromagnetic signals from the body (100a), a first feeding part (200), a second feeding part (300), and a third feeding part (500). The first, second and third feeding parts are electronically connected to the signal feeding part for feeding electromagnetic signals to the body. A first body part (201), a first feeding end (202) and a second feeding end (203) of the first feeding part collectively form an “F” shape. A second body part (301), a third feeding end (302) and a fourth feeding end (303) of the second feeding part collectively form an inverted “F” shape. The third feeding part, a first radiating end (101a) and a second radiating end (102a) collectively form an “H” shape.

Abstract: A UWB printed antenna (1) printed on a substrate (10) includes a body (100a) for radiating and receiving electromagnetic signals, a signal feeding part (400) for inputting electromagnetic signals to or outputting electromagnetic signals from the body (100a), a first feeding part (200), a second feeding part (300), and a third feeding part (500). The first, second and third feeding parts are electronically connected to the signal feeding part for feeding electromagnetic signals to the body. A first body part (201), a first feeding end (202) and a second feeding end (203) of the first feeding part collectively form an “F” shape. A second body part (301), a third feeding end (302) and a fourth feeding end (303) of the second feeding part collectively form an inverted “F” shape. The third feeding part, a first radiating end (101a) and a second radiating end (102a) collectively form an “H” shape.