SU943934A1

SU943934A1 - Microstrip doublet aerial

Info

Publication number: SU943934A1
Application number: SU802927322A
Authority: SU
Inventors: Владимир Евгеньевич Скрежендевский; Татьяна Николаевна Дрощенко
Original assignee: Гомельский Государственный Университет
Priority date: 1980-05-20
Filing date: 1980-05-20
Publication date: 1982-07-15

Description

Изобретение относится к антенной технике й может быть использовано В многоэлементных антенных решетках.The invention relates to antenna technology and can be used in multi-element antenna arrays.

Известна микрополосковая дипольная антенна, плечи диполя которой выполнены на одной стороне, а запитывающий элемент в виде полоска выполнен на другой стороне (jj. ,A microstrip dipole antenna is known, the dipole shoulders of which are made on one side, and the feeding element in the form of a strip is made on the other side (jj.,

Однако известная антенна требует двухстороннего печатного монтажа и не обеспечивает достаточной развязки по поляризации.However, the known antenna requires double-sided printed wiring and does not provide sufficient isolation for polarization.

Цель изобретения - упрощение конструкции и увеличение развязки по поляризации.The purpose of the invention is to simplify the design and increase the isolation of the polarization.

Для достижения этой цели в микро полосковой дипольной антенне рефлектор , четвертьволновые изоляторы и линия питания выполняются на одной стороне диэлектрической под- 20 ложки, в качестве линии питания используется щелевая линия, выполненная в виде двух проводящих полосков, расположенных между полосками изо2 ляторов. При этом первые концы проводящих полосков линии питания подсоединены к соответствующим плечам диполя, один из вторых концов соединен с рефлектором, а другой отделен от него зазором, равным ширине щели щелевой линии, причем расстояние между токопроводящим полоском линии питания и ближайшим к нему полоском изолятора выбрано больше ширины щели щелевой линии не менее чем в десять раз.To achieve this goal, in a microstrip dipole antenna, a reflector, quarter-wave insulators and a power line are made on one side of the dielectric substrate 20; a slot line made in the form of two conducting strips located between the strips of insulators is used as the power line. In this case, the first ends of the conducting strips of the power line are connected to the corresponding shoulders of the dipole, one of the second ends is connected to the reflector, and the other is separated from it by a gap equal to the width of the slit of the slit line, and the distance between the conductive strip of the power line and the closest insulator strip is chosen more the slit line slit width is not less than ten times.

На чертеже схематически представ лена предлагаемая антенна, общий 15 вид.The drawing schematically shows the proposed antenna, General 15 view.

Микрополосковая дипольная антенна содержит плечи диполя 1 , 2, рефлектор 3, полосковые четвертьволновые изоляторы 4, линию питания, образованную проводящими полосками 5, 6 и щелевой линией 7·The microstrip dipole antenna contains the shoulders of the dipole 1, 2, a reflector 3, strip quarter-wave insulators 4, a power line formed by conductive strips 5, 6 and a slot line 7

Из-за различия длины волны в линии питания и в однопроводной линии на диэлектрике полоски четвертьвол3 новых изоляторов 4 не могут выполнять функции проводящих полосков 5, 6 линии питания. Поэтому линия питания выполняется отдельно, так чтобы проводящие полоски 5, 6 были отделены от изоляторов 4 на расстояние не менее десяти размеров щелевой линии 7.Due to the difference in wavelength in the supply line and in the single-wire line on the dielectric, the quarter-wave 3 strips of the new insulators 4 cannot perform the functions of the conductive strips 5, 6 of the power line. Therefore, the power line is carried out separately, so that the conductive strips 5, 6 are separated from the insulators 4 by a distance of at least ten sizes of the slit line 7.

Антенна работает следующим образом.The antenna works as follows.

С помощью коаксиальной линии энергия подводится на проводящий полосок 5 линии питания, концентрируется в области щелевой линии 7 и возбуждает электромагнитную волну (при работе на передачу).Using a coaxial line, energy is supplied to the conductive strip 5 of the power line, concentrated in the area of the slit line 7, and excites an electromagnetic wave (during transmission).

Таким образом, выполнение линии питания на одной стороне диэлектрической подложки с диполем, рефлектором и четвертьволновыми изоляторами позволяет упрестить конструкцию антенны и увеличить развязку по поляризации.Thus, the implementation of the power line on one side of the dielectric substrate with a dipole, reflector and quarter-wave insulators allows you to abbreviate the antenna design and increase polarization isolation.

Claims

The invention relates to antenna technology and can be used in multi-element antenna arrays. A known microstrip dipole antenna, the shoulders of a dipole on one side, and the power supply element in the form of a strip on the other side. However, the known antenna requires two-sided printed wiring and does not provide sufficient polarization. The purpose of the invention is to simplify the design and increase polarization. To achieve this goal, in a microstrip dipole antenna a reflector, quarter-wave insulators and power lines are made on one side of the dielectric substrate, the slit line is used as a power line, made in the form of two conductive strips between insulator strips. At the same time, the first ends of the conductive strips of the supply line are connected to the respective shoulders of the dipole, one of the second ends is connected to the reflector, and the other is separated from it by a gap equal to the slot width of the slotted line, and the distance between the conductive strip of the supply line and the strip next to it The insulator is chosen to be not less than ten times the slit line width. The drawing shows schematically the proposed antenna, a general view. Microstrip dipole antenna contains shoulders dipole 1, 2, reflector 3, strip quarter-wave insulators C, power line, formed by conductive strips 5 6 and slot line 7. Because of the difference in wavelength in the power line and in the single-wire line on the dielectric, four-quarter-wave lines The insulators cannot function as conductive strips 5-6 of the power line. Therefore, the power line is performed separately, so that the conductive strips 5, 6 are separated from the insulators by a distance of at least ten times the size of the slot line 7. The antenna works as follows. Using a coaxial line, the energy is applied to the conductive line 5. the power is concentrated in the region of slot line 7 and excites an electromagnetic wave (when operating in transmission). Thus, making the supply line on one side of the dielectric substrate with a dipole, a reflector, and quarter-wave insulators allows you to simplify the antenna design and increase polarization separation. A microstrip dipole antenna comprising a symmetrical dipole, a reflector interconnected by stripe quarter-wave insulators and placed on a dielectric substrate, and a power line, in order to increase polarization and simplify the design, the power line is made in the form of two conductive strips forming a slotted line and located between quarter-wave insulators, with the first ends of the conductive strips of the power line connected to the corresponding A dipole is located at the secondary ends, one of the second ends is connected to the reflector, and the other is separated from it by a gap equal to the slit line width, and the distance between the conductive strip of the power line and the insulator strip nearest to it is greater than the slit width of the slit line not less than ten times. Sources of information taken into account in the examination 1. US patent number, tsp. 3 3-821, 197.