公开(公告)号：IT1108290B

公开(公告)日：1985-12-02

申请号：IT6806978

申请日：1978-05-11

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BIELLI PAOLO ,  PADOVA SALVATORE DE

IPC: H01Q13/02 ,  H01Q17/00 ,  H01Q19/13 ,  H01Q

公开(公告)号：DE2850492A1

公开(公告)日：1979-05-31

申请号：DE2850492

申请日：1978-11-21

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： PADOVA SALVATORE DE ,  ROSENGA GIORGIO ,  PAGANA ENRICO

IPC: H01Q15/16 ,  H01Q19/12

Abstract: An antenna designed to emit a beam of generally elliptical cross-section has a reflector with a parabolic-elliptical concave surface conforming to the formula (x/p)+(y/q)=2z where p and q are the parameters of its parabolic cross-section in the xz and yz planes, respectively. A microwave feed located on a line interconnecting the foci of these two parabolas, preferably at the outer focus separated from the surface vertex by a distance q/2, generates a beam parallel to the axis whose ellipticity depends on the ratio q/p.

公开(公告)号：FR2410375A1

公开(公告)日：1979-06-22

申请号：FR7832122

申请日：1978-11-14

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： PADOVA SALVATORE DE ,  PAGANA ENRICO ,  ROSENGA GIORGIO

IPC: H01Q15/16 ,  H01Q19/12

Abstract: An antenna designed to emit a beam of generally elliptical cross-section has a reflector with a parabolic-elliptical concave surface conforming to the formula (x/p)+(y/q)=2z where p and q are the parameters of its parabolic cross-section in the xz and yz planes, respectively. A microwave feed located on a line interconnecting the foci of these two parabolas, preferably at the outer focus separated from the surface vertex by a distance q/2, generates a beam parallel to the axis whose ellipticity depends on the ratio q/p.

公开(公告)号：IT7868069D0

公开(公告)日：1978-05-11

申请号：IT6806978

申请日：1978-05-11

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： BIELLI PAOLO ,  PADOVA SALVATORE DE

IPC: H01Q13/02 ,  H01Q17/00 ,  H01Q19/13 ,  H01Q

公开(公告)号：IT1091499B

公开(公告)日：1985-07-06

申请号：IT6965677

申请日：1977-11-25

Applicant: CSELT CENTRO STUDI LAB TELECOM

Inventor： PADOVA SALVATORE DE ,  PAGANA ENRICO ,  ROSENGA GIORGIO

IPC: H01Q15/16 ,  H01Q19/12 ,  H01Q

Abstract: An antenna designed to emit a beam of generally elliptical cross-section has a reflector with a parabolic-elliptical concave surface conforming to the formula (x/p)+(y/q)=2z where p and q are the parameters of its parabolic cross-section in the xz and yz planes, respectively. A microwave feed located on a line interconnecting the foci of these two parabolas, preferably at the outer focus separated from the surface vertex by a distance q/2, generates a beam parallel to the axis whose ellipticity depends on the ratio q/p.