FIELD: antenna technology.
SUBSTANCE: invention relates to antenna technology, in particular to log-periodic antennas. The expected result is achieved by installing a director-type parasite in addition to the smallest vibrator, whose size coincides with the size of the smallest vibrator, in a classical log-periodic antenna containing a number of symmetrical active vibrators powered by a two-wire symmetrical distribution line in the form of carrier pipes with a short-circuited jumper, while a passive reflector is installed behind the largest vibrator, the size of which coincides with the largest vibrator, the length of the two-wire distribution line is extended by using conductors by an amount, commensurate with the distance between the smallest vibrator and the director-type parasite, realizing a kind of resonator.
EFFECT: expansion of the operating frequency range in the lower and upper parts of the operating range by reducing the standing wave coefficient with a simultaneous increase in the gain.
4 cl, 6 dwg
Title | Year | Author | Number |
---|---|---|---|
ANTENNA | 2020 |
|
RU2742673C1 |
ANTENNA | 2021 |
|
RU2757803C1 |
COMBINED BROADBAND TELEVISION ANTENNA | 2008 |
|
RU2378749C1 |
LOGO-PERIODICAL ANTENNA | 2003 |
|
RU2253926C1 |
BROADBAND ANTENNA WITH FOLDED DIPOLES | 2001 |
|
RU2206947C2 |
LOG-PERIODIC DIPOLE ANTENNA | 2000 |
|
RU2189676C2 |
DIRECTOR ANTENNA | 1999 |
|
RU2159974C1 |
DIRECTOR ANTENNA | 2005 |
|
RU2285984C1 |
DUAL-BAND YAGI-UDA ANTENNA | 2013 |
|
RU2553096C2 |
LOG-PERIODIC COMBINED ANTENNA | 2010 |
|
RU2427946C1 |
Authors
Dates
2023-02-17—Published
2022-03-09—Filed