Micro-strip antenna with L-shaped band-stop filter

A micro-strip antenna with an L-shaped band-stop Filter, the micro-strip antenna comprising:

• a first T-shaped coupler comprising a first end, a second end, and a third end, the third end of the first T-shaped coupler for transmitting or receiving a signal;
• a first micro-strip antenna row comprising at least a first rectangular micro-strip antenna unit and a first micro-strip line, the first rectangular micro-strip antenna unit coupled to the first micro-strip line, the first micro-strip line coupled to the first end of the first T-shaped coupler;
• a second micro-strip antenna row comprising at least a second rectangular micro-strip antenna unit and a second micro-strip line, the second rectangular micro-strip antenna unit coupled to the second micro-strip line, the second micro-strip line coupled to the second end of the first T-shaped coupler;
• a first L-shaped band-stop filter disposed along a corner of the first rectangular micro-strip antenna unit closest to the first T-shaped coupler, and disposed between the first rectangular micro-strip antenna unit and the first T-shaped coupler at a distance;
• and
• a second L-shaped band-stop filter disposed along a corner of the second rectangular micro-strip antenna unit closest to the first T-shaped coupler, and disposed between the second rectangular micro-strip antenna unit and the first T-shaped coupler at a distance.

A micro-strip antenna with an L-shaped band-stop filter, the micro-strip antenna comprising:

• a first micro-strip antenna row comprising:
• a first rectangular micro-strip antenna unit, a length of the first rectangular micro-strip antenna unit being 12.5 millimeters, width of the first rectangular micro-strip antenna unit being 12.5 millimeters;
• a first micro-strip line coupled to the first rectangular micro-strip antenna unit, a length of the first micro-strip line being 4 millimeters, a width of the first micro-strip line being 0.7 millimeters;
• a second rectangular micro-strip antenna unit coupled to the first micro-strip line, a length of the second rectangular micro-strip antenna unit being 12.5 millimeters, a width of the second rectangular micro-strip antenna unit being 12.5 millimeters;
• and
• a second micro-strip line coupled to the second rectangular micro-strip antenna unit, a length of the second micro-strip line being 1.5 millimeters, a width of the second micro-strip line being 0.7 millimeters;
• a second micro-strip antenna row comprising:
• a third rectangular micro-strip antenna unit, a length of the third rectangular micro-strip antenna unit being 12.5 millimeters, a width of the third rectangular micro-strip antenna unit being 12.5 millimeters, a distance between a first side of the third rectangular micro-strip antenna unit and a second side of the first rectangular micro-strip antenna unit being 4 millimeters;
• a third micro-strip line coupled to the third rectangular micro-strip antenna unit, a length of the third micro-strip line being 4 millimeters, a width of the third micro-strip line being 0.7 millimeters;
• a fourth rectangular micro-strip antenna unit coupled to the third micro-strip line, a length of the fourth rectangular micro-strip antenna unit being 12.5 millimeters, a width of the fourth rectangular micro-strip antenna unit being 12.5 millimeters, a distance between a first side of the fourth rectangular micro-strip antenna unit and a second side of the second rectangular micro-strip antenna unit being 4 millimeters;
• and
• a fourth micro-strip line coupled to the fourth rectangular micro-strip antenna unit, a length of the fourth micro-strip line being 1.5 millimeters, a width of the fourth micro-strip line being 0.7 millimeters;
• a T-shaped coupler for transmitting a transmitting signal to the first micro-strip antenna row and the second micro-strip antenna row, the T-shaped coupler comprising:
• a first isosceles triangle unit coupled to the second micro-strip line, a base of the first isosceles triangle unit being 0.7 millimeters, a height of the first isosceles triangle unit being 0.7 millimeters;
• a first horizontal unit coupled to the first isosceles, a length of the first horizontal unit being 6.4 millimeters, a width of the first horizontal unit being 0.7 millimeters;
• a first right triangle coupled to the first horizontal unit, a base of the first right triangle being 0.7 millimeters, a height of the first right triangle being 1.5 millimeters;
• a second isosceles triangle coupled to the fourth micro-strip line, a base of the second isosceles triangle being 0.7 millimeters, a height of the second isosceles triangle being 0.7 millimeters;
• a second horizontal unit coupled to the second isosceles triangle, a length of the second horizontal unit being 6.4 millimeters, a width of the second horizontal unit being 0.7 millimeters;
• a second right triangle coupled to the second horizontal unit, a base of the second right triangle being 0.7 millimeters, a height of the second right triangle being 1.5 millimeters;
• and
• a trunk coupled to the first right triangle and the second right triangle for receiving the transmitting signal, a length of the trunk being 2.9 millimeters, a width of the trunk being 3 millimeters;
• and
• an L-shaped band-stop filter pair comprising:
• a first L-shaped band-stop filter comprising:
• a first vertical unit, a length of the first vertical unit being 8.2 millimeters, a width of the first vertical unit being 0.3 millimeters;
• a third isosceles triangle coupled to the first vertical unit, a base of the third isosceles triangle being 0.3 millimeters, a height of the third isosceles triangle being 0.3 millimeters;
• and
• a third horizontal unit coupled to the third isosceles triangle, a length of the third horizontal unit being 7.15 millimeters, a width of the third horizontal unit being 0.3 millimeters, a distance between the third horizontal unit and the second micro-strip line being 0.3 millimeters, a distance between the third horizontal unit and the first horizontal unit being 0.3 millimeters;
• and
• a second L-shaped band-stop filter comprising:
• a second vertical unit, a length of the second vertical unit being 8.2 millimeters, a width of the second vertical unit being 0.3 millimeters;
• a fourth isosceles triangle coupled to the second vertical unit, a base of the fourth isosceles triangle being 0.3 millimeters, a height of the fourth isosceles triangle being 0.3 millimeters;
• and
• a fourth horizontal unit coupled to the fourth isosceles triangle, a length of the fourth horizontal unit being 7.15 millimeters, a width of the fourth horizontal unit being 0.3 millimeters, a distance between the fourth horizontal unit and the fourth micro-strip line being 0.3 millimeters, a distance between the fourth horizontal unit and the second horizontal unit being 0.3 millimeters.

A micro-strip antenna with an L-shaped band-stop filter, the micro-strip antenna comprising:

• M-stage T-shaped couplers, each T-shaped coupler comprising a first end, a second end, and a third end, a number of the Kth-stage T-shaped couplers being 2K, the third end of each Kth-stage T-shaped coupler coupled to the first end or the second end of a corresponding (K−1)th-stage T-shaped coupler, the third end of the 0th-stage T-shaped coupler disposed for transmitting or receiving a signal;
• 2M first micro-strip antenna rows, each first micro-strip antenna row comprising N first rectangular antenna units and N first micro-strip lines, each first rectangular antenna unit coupled to a corresponding first micro-strip line, one of the N first micro-strip lines coupled to the first end of a corresponding Mth-stage T-shaped coupler;
• 2M second micro-strip antenna rows, each second micro-strip antenna row comprising N second rectangular antenna units and N second micro-strip lines, each second rectangular antenna unit coupled to a corresponding second micro-strip line, one of the N second micro-strip lines coupled to the second end of a corresponding Mth-stage T-shaped coupler;
• 2M first L-shaped band-stop filters, each first L-shaped band-stop filter disposed along a corner of one of the first rectangular micro-strip antenna units closest to a corresponding Mth-stage T-shaped coupler, and disposed between the first rectangular micro-strip antenna unit and the first end of the Mth-stage T-shaped coupler at a distance;
• and
• 2M second L-shaped band-stop filters, each second L-shaped band-stop filter disposed along a corner of one of the second rectangular micro-strip antenna units closest to a corresponding Mth-stage T-shaped coupler, and disposed between the second rectangular micro-strip antenna unit and the second end of the Mth-stage T-shaped coupler at a distance.