IT1092514B - Radiatore a guida d'onda a duplice banda - Google Patents

Radiatore a guida d'onda a duplice banda

Info

Publication number
IT1092514B
IT1092514B IT19425/78A IT1942578A IT1092514B IT 1092514 B IT1092514 B IT 1092514B IT 19425/78 A IT19425/78 A IT 19425/78A IT 1942578 A IT1942578 A IT 1942578A IT 1092514 B IT1092514 B IT 1092514B
Authority
IT
Italy
Prior art keywords
wave guide
double band
band wave
guide radiator
radiator
Prior art date
Application number
IT19425/78A
Other languages
English (en)
Other versions
IT7819425A0 (it
Original Assignee
Int Standard Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of IT7819425A0 publication Critical patent/IT7819425A0/it
Application granted granted Critical
Publication of IT1092514B publication Critical patent/IT1092514B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001—Crossed polarisation dual antennas
IT19425/78A 1977-01-27 1978-01-19 Radiatore a guida d'onda a duplice banda IT1092514B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3345/77A GB1536242A (en) 1977-01-27 1977-01-27 Antenna

Publications (2)

Publication Number Publication Date
IT7819425A0 IT7819425A0 (it) 1978-01-19
IT1092514B true IT1092514B (it) 1985-07-12

Family

ID=9756570

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19425/78A IT1092514B (it) 1977-01-27 1978-01-19 Radiatore a guida d'onda a duplice banda

Country Status (5)

Country Link
US (1) US4141012A (it)
DE (1) DE2802585A1 (it)
FR (1) FR2379178A1 (it)
GB (1) GB1536242A (it)
IT (1) IT1092514B (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5651102A (en) * 1979-10-04 1981-05-08 Japan Radio Co Ltd Radar antenna for two frequencies
US4353072A (en) * 1980-11-24 1982-10-05 Raytheon Company Circularly polarized radio frequency antenna
US4672384A (en) * 1984-12-31 1987-06-09 Raytheon Company Circularly polarized radio frequency antenna
GB2193379B (en) * 1986-07-24 1990-04-18 Gen Electric Plc An antenna
FR2640431B1 (fr) * 1988-12-08 1991-05-10 Alcatel Espace Dispositif rayonnant multifrequence
US4978965A (en) * 1989-04-11 1990-12-18 Itt Corporation Broadband dual-polarized frameless radiating element
US5023623A (en) * 1989-12-21 1991-06-11 Hughes Aircraft Company Dual mode antenna apparatus having slotted waveguide and broadband arrays
US5270724A (en) * 1991-04-04 1993-12-14 Hughes Aircraft Company Multifrequency phased array aperture
US5872544A (en) * 1997-02-04 1999-02-16 Gec-Marconi Hazeltine Corporation Electronic Systems Division Cellular antennas with improved front-to-back performance
US6175333B1 (en) 1999-06-24 2001-01-16 Nortel Networks Corporation Dual band antenna
US6396441B2 (en) 1999-11-02 2002-05-28 Nortel Networks Limited Dual band antenna
US6388619B2 (en) 1999-11-02 2002-05-14 Nortel Networks Limited Dual band antenna

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784403A (en) * 1951-03-17 1957-03-05 North American Aviation Inc Double cavity primary feed
US2897491A (en) * 1957-01-22 1959-07-28 Bendix Aviat Corp Phase saturable transducer
US3193830A (en) * 1963-07-25 1965-07-06 Joseph H Provencher Multifrequency dual ridge waveguide slot antenna
US3523297A (en) * 1968-12-20 1970-08-04 Hughes Aircraft Co Dual frequency antenna
US3882505A (en) * 1974-05-30 1975-05-06 Robert J Mailloux Dual band phased array element

Also Published As

Publication number Publication date
IT7819425A0 (it) 1978-01-19
US4141012A (en) 1979-02-20
DE2802585A1 (de) 1978-08-03
GB1536242A (en) 1978-12-20
FR2379178A1 (fr) 1978-08-25

Similar Documents

Publication Publication Date Title
FR2462847B1 (fr) Faucheuse-conditionneuse
FR2400316B1 (fr) Moissonneuse-batteuse
BR7803213A (pt) Ceifadeira agricola
IS2435A7 (is) Sláttutæki fyrir illgresi
AT359110B (de) Selbstfahrbare gleisbaumaschinenanordnung
AR218338A1 (es) Maquina segadora de heno
FR2410429B1 (fr) Moissonneuse de recolte
IT1112289B (it) Laser guida d'onda
IT1092514B (it) Radiatore a guida d'onda a duplice banda
AT381830B (de) Motorrasenmaeher
IT1095849B (it) Apparato di irrigazione agricoal
DK156191C (da) Mejemaskine
FR2380713B1 (fr) Faucheuse
PL203828A1 (pl) Kosiarka rolnicza
FR2390304B1 (fr) Crochet d'attelage perfectionne
DK155811C (da) Slaamaskine
SE7805420L (sv) Gresklippare
IT1094885B (it) Guida d'onda circolare
FR2407658B1 (fr) Faucheuse
ATA438178A (de) Silagefraeser
AT383247B (de) Maehmaschine
FR2533799B1 (fr) Faucheuse
SE7807497L (sv) Bred bandagevev
IT1093278B (it) Generatore d'onda,sinusoidale-cosinusoidale modulata a larghezza di impulso
IT7820775A0 (it) Banda. circolatori in guida d'onda a larga