公开(公告)号：US20230019589A1

公开(公告)日：2023-01-19

申请号：US17375804

申请日：2021-07-14

申请人： Naval Information Warfare Center Pacific

发明人： David Carlos Dawson ,  Ricardo Santoyo-Mejia ,  Ronald B. Thompson ,  Jaime E. Radulovich

IPC分类号： H01Q3/34 ,  G01S19/21

摘要： An electronically steerable parasitic array (ESPAR) antenna system that includes an ESPAR antenna, a GPS receiver, a GPS low-noise amplifier, a power detector module, and a central processing unit. The GPS receiver is connected to the ESPAR antenna as a separate component. The GPS low-noise amplifier strengthens a signal to propagate through the transmission line and operates in the L1 and L2 GPS bands. The power detector module provides additional amplification for noise quantification. The power detector receives an RF power level and converts the RF power level into a DC voltage output. The central processing unit includes memory that is capable of storing the DC voltage output from the power detector.

公开(公告)号：US11539129B1

公开(公告)日：2022-12-27

申请号：US17375804

申请日：2021-07-14

申请人： Naval Information Warfare Center Pacific

发明人： David Carlos Dawson ,  Ricardo Santoyo-Mejia ,  Ronald B Thompson ,  Jaime E Radulovich

IPC分类号： H01Q3/26 ,  G01S19/21 ,  H01Q5/385 ,  H01Q3/44 ,  H01Q3/34

摘要： An electronically steerable parasitic array radiator (ESPAR) antenna system that includes an ESPAR antenna, a GPS receiver, a GPS low-noise amplifier, a power detector module, and a central processing unit. The GPS receiver is connected to the ESPAR antenna as a separate component. The GPS low-noise amplifier strengthens a signal to propagate through the transmission line and operates in the L1 and L2 GPS bands. The power detector module provides additional amplification for noise quantification. The power detector receives an RF power level and converts the RF power level into a DC voltage output. The central processing unit includes memory that is capable of storing the DC voltage output from the power detector.

公开(公告)号：US11563509B2

公开(公告)日：2023-01-24

申请号：US17210634

申请日：2021-03-24

申请人： Naval Information Warfare Center Pacific

发明人： David Carlos Dawson ,  Ricardo Santoyo-Mejia ,  Ronald B Thompson

IPC分类号： G01S19/15 ,  H04K3/00 ,  G01S19/01

摘要： A process for an electronically steerable parasitic array (ESPAR) antenna includes operating the ESPAR antenna with a receiver in Normal Mode until an internal flag is generated by the receiver indicating jamming RF noise preventing Normal Mode operation, causing the ESPAR antenna to switch to Anti-jam Mode. Anti-jam Mode includes a Search Mode and a Track Mode. The ESPAR antenna is steered in Search Mode, causing the ESPAR antenna to beam in a circular pattern to locate a spatial direction of the jamming RF noise, identify the spatial direction of the jamming RF noise preventing Normal Mode operation, and place a null in the spatial direction of the jamming RF noise. The ESPAR antenna switches to Track Mode to maintain the null in the spatial direction of the jamming RF noise until the jamming RF noise is not present. The ESPAR antenna then returns to operating in Normal Mode.