Experimental rotary transformers for antenna power supplies and control [Antenna Designer's Notebook]

Pekka Eskelinen

doi:10.1109/MAP.2010.5687521

Experimental rotary transformers for antenna power supplies and control [Antenna Designer's Notebook]

Pekka Eskelinen^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Conference article › Scientific › vertaisarvioitu

5 Sitaatiot (Scopus)

Abstrakti

Rotary transformers can be effectively used for low-noise amplifier (LNA) or down-converter power supply and control signal transmission in scanning-antenna applications. Three air-core designs, utilizing a square wave at audio frequencies, using HCMOS logic and giving a 5 V/0.6 A dc power feed, are discussed. The constructions allow further installation of RF rotary joints or other coaxial hardware up to a diameter of 100 mm. They add about 30 to 80 mm to the overall height of the antenna, depending on application and requirements. Bearing replacement with such a transformer is also possible, if adequate tolerances are met and suitable coil-support materials are selected.

Alkuperäiskieli	Englanti
Artikkeli	5687521
Sivut	164-167
Sivumäärä	4
Julkaisu	IEEE Antennas and Propagation Magazine
Vuosikerta	52
Numero	5
DOI - pysyväislinkit	https://doi.org/10.1109/MAP.2010.5687521
Tila	Julkaistu - 1 lokak. 2010
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa

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10.1109/MAP.2010.5687521

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title = "Experimental rotary transformers for antenna power supplies and control [Antenna Designer's Notebook]",

abstract = "Rotary transformers can be effectively used for low-noise amplifier (LNA) or down-converter power supply and control signal transmission in scanning-antenna applications. Three air-core designs, utilizing a square wave at audio frequencies, using HCMOS logic and giving a 5 V/0.6 A dc power feed, are discussed. The constructions allow further installation of RF rotary joints or other coaxial hardware up to a diameter of 100 mm. They add about 30 to 80 mm to the overall height of the antenna, depending on application and requirements. Bearing replacement with such a transformer is also possible, if adequate tolerances are met and suitable coil-support materials are selected.",

keywords = "measurement radar, radar, radar power supply, radar scanner, rotary joint, Rotary transformer, transformers",

author = "Pekka Eskelinen",

year = "2010",

month = oct,

day = "1",

doi = "10.1109/MAP.2010.5687521",

language = "English",

volume = "52",

pages = "164--167",

journal = "IEEE Antennas and Propagation Magazine",

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publisher = "IEEE",

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T1 - Experimental rotary transformers for antenna power supplies and control [Antenna Designer's Notebook]

AU - Eskelinen, Pekka

PY - 2010/10/1

Y1 - 2010/10/1

N2 - Rotary transformers can be effectively used for low-noise amplifier (LNA) or down-converter power supply and control signal transmission in scanning-antenna applications. Three air-core designs, utilizing a square wave at audio frequencies, using HCMOS logic and giving a 5 V/0.6 A dc power feed, are discussed. The constructions allow further installation of RF rotary joints or other coaxial hardware up to a diameter of 100 mm. They add about 30 to 80 mm to the overall height of the antenna, depending on application and requirements. Bearing replacement with such a transformer is also possible, if adequate tolerances are met and suitable coil-support materials are selected.

AB - Rotary transformers can be effectively used for low-noise amplifier (LNA) or down-converter power supply and control signal transmission in scanning-antenna applications. Three air-core designs, utilizing a square wave at audio frequencies, using HCMOS logic and giving a 5 V/0.6 A dc power feed, are discussed. The constructions allow further installation of RF rotary joints or other coaxial hardware up to a diameter of 100 mm. They add about 30 to 80 mm to the overall height of the antenna, depending on application and requirements. Bearing replacement with such a transformer is also possible, if adequate tolerances are met and suitable coil-support materials are selected.

KW - measurement radar

KW - radar

KW - radar power supply

KW - radar scanner

KW - rotary joint

KW - Rotary transformer

KW - transformers

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U2 - 10.1109/MAP.2010.5687521

DO - 10.1109/MAP.2010.5687521

M3 - Conference article

AN - SCOPUS:78651510156

SN - 1045-9243

VL - 52

SP - 164

EP - 167

JO - IEEE Antennas and Propagation Magazine

JF - IEEE Antennas and Propagation Magazine

IS - 5

M1 - 5687521

ER -

Experimental rotary transformers for antenna power supplies and control [Antenna Designer's Notebook]

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