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2 369 948

(13)

(51)

IPC

H01Q11/08(2006-01-01)

(21) (22)

Application

2008117519/09, 2008-04-30

(24)

Start date

2008-04-30

(22)

Actual filing date

2008-04-30

(45)

Published

2009-10-10

(72)

Inventor

Gavrilov Jurij AndreevichKireev Evgenij KonstantinovichKuznetsov Vjacheslav IvanovichPopov Valerij PavlovichKharitonov Jurij Nikolaevich

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Nauchno-Issledovatel'Skij Radiotekhnicheskij Institut Imeni Akademika A.I. Berga"

HELICAL ANTENNA Russian patent published in 2009 - IPC H01Q11/08

Abstract RU 2369948 C1

FIELD: radio engineering.

SUBSTANCE: invention is related to the field of radio engineering and may be used as radiators of phased antenna arrays of wideband direction-finding systems. Helical antenna comprises resonator and radiator arranged in the form of flat bilifar spiral fixed in plane of resonator opening, which is connected to supplying feeder. On internal and external lateral sides of bilifar spiral branches there are matching stepped irregularities. Shapes of envelopes of curved lateral sides of antenna radiator bilifar spiral branches, and positions of matching stepped irregularities on lateral sides of bilifar spiral branches are calculated according to appropriate formulas.

EFFECT: improved matching of antenna with supply feeder and increased maximum working length of antenna wave 1,6 times.

3 dwg

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RU 2 369 948 C1

Authors

Gavrilov Jurij Andreevich

Kireev Evgenij Konstantinovich

Kuznetsov Vjacheslav Ivanovich

Popov Valerij Pavlovich

Kharitonov Jurij Nikolaevich

Dates

2009-10-10—Published

2008-04-30—Filed