Single-board microstrip patch phased-array antenna with simple beam control system
A phased array antenna and microstrip patch technology, which can be applied to antennas, antenna arrays, electrical components, etc., can solve the problems of complex phased array systems, poor portability, and high cost.
Inactive Publication Date: 2013-02-20
SOUTHEAST UNIV
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[0004] The traditional phased array antenna system is composed of a large number of phase shifters (Phase shifter-PS) and antennas (Antenna) connected to each other. These phase shifters are independent devices, except for connecting radio frequency (Radio Frequency-RF) lines In addition, they are also connected to their own beam control lines (Control Line-CL) and connected to the beam controller (BeamController), which makes the traditional phased array system complex, low integration, poor portability, and expensive
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[0014] A single-board microstrip patch phased array antenna with a simple wave control system, comprising: a dielectric substrate 1, a grounded metal plate 6 is arranged on one surface of the dielectric substrate 1, and a grounded metal plate 6 is arranged on the other surface of the dielectric substrate 1. At least two row-directed microstrip lines 3 and one column-directed microstrip line 2, microstrip patch antennas 12 are equidistantly arranged on each row-directed microstrip line, and the column-directed microstrip line 2 passes through a DC blocking capacitor 8 Connect to one end of the row microstrip line 3 respectively, the other end of the row microstrip line 3 is respectively connected to a matching load 9 through a DC blocking capacitor 8, and one end of the column microstrip line 2 is connected to a matching load through a DC blocking capacitor 8 9. The other end of the column microstrip line 2 is connected to the radio frequency terminal 10 through a DC blocking ca...
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The invention relates to a single-board microstrip patch phased-array antenna with a simple beam control system. The single-board microstrip patch phased-array antenna comprises a dielectric substrate, wherein a metallic grounding plate is arranged on one surface of the dielectric substrate, at least two row-direction microstrip lines and a column-direction microstrip line are arranged on the other surface of the dielectric substrate, and microstrip patch antennae are equidistantly arranged on each row-direction microstrip line; the column-direction microstrip line is connected with one ends of the row-direction microstrip lines respectively through direct current (DC) blocking capacitors, and the other ends of the row-direction microstrip lines are respectively connected with matched loads through DC blocking capacitors; one end of the column-direction microstrip line is connected with a matched load through a DC blocking capacitor, and the other end of the column-direction microstrip line is connected with a radio-frequency terminal through a DC blocking capacitor; and row-direction barium strontium titanate (BST) strips are respectively arranged between all the row-direction microstrip lines and the dielectric substrate, and a column-direction BST strip is also arranged between the column-direction microstrip line and the dielectric substrate.
Description
1. Technical field: [0001] The invention relates to a single-board microstrip patch phased array antenna based on single-board system integration technology, compact structure and very simple wave control system. The antenna can be used for portable low-cost millimeter-wave real-time imaging and radar systems. 2. Background technology [0002] Antenna is an essential and important part of systems such as radar, millimeter wave imaging and wireless communication. The beam pointing of the antenna transmitting or receiving electromagnetic waves requires regular movement in many applications (such as target search radar or millimeter wave scanning imaging system) , that is, scan. The scanning of the antenna beam can be realized by means of mechanical driving, and also can be realized by means of electrical control. Mechanical scanning is the beam scanning realized by the mechanical movement of the antenna according to the instruction. The scanning rate of the antenna is not hig...
Claims
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Login to View More IPC IPC(8): H01Q3/34H01Q13/08H01Q21/00
Inventor 王宗新杨非褚家美
Owner SOUTHEAST UNIV