NL6817889A - - Google Patents

Info

Publication number: NL6817889A
Authority: NL; Netherlands

Application number

NL6817889A

Other versions

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.)

1968-10-15

Filing date

1968-12-13

Publication date

1970-04-17

1968-12-13 Application filed filed Critical

1970-04-17 Publication of NL6817889A publication Critical patent/NL6817889A/xx

1980-12-15 Publication of NL165897B publication Critical patent/NL165897B/en

1981-05-15 Application granted granted Critical

1981-05-15 Publication of NL165897C publication Critical patent/NL165897C/en

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2133—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using coaxial filters

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Transmitters (AREA)
Variable-Direction Aerials And Aerial Arrays (AREA)
Transceivers (AREA)
Radar Systems Or Details Thereof (AREA)

NL6817889.A 1968-10-15 1968-12-13 TRANSCEIVER FOR VERY HIGH FREQUENCIES. NL165897C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH1539368A CH477132A (en)	1968-10-15	1968-10-15	Transceiver for very high frequencies

Publications (3)

Publication Number	Publication Date
NL6817889A true NL6817889A (en)	1970-04-17
NL165897B NL165897B (en)	1980-12-15
NL165897C NL165897C (en)	1981-05-15

Family

ID=4408732

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL6817889.A NL165897C (en)	1968-10-15	1968-12-13	TRANSCEIVER FOR VERY HIGH FREQUENCIES.

Country Status (5)

Country	Link
US (1)	US3624508A (en)
AT (1)	AT292790B (en)
CH (1)	CH477132A (en)
NL (1)	NL165897C (en)
SE (1)	SE344396B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3870960A (en) *	1973-10-12	1975-03-11	Rockwell International Corp	Mixer carrier null adjustment
JPS5336284B2 (en) *	1974-09-06	1978-10-02
JPS5149609A (en) *	1974-10-28	1976-04-30	Hitachi Ltd
JPS5380906A (en) *	1976-12-27	1978-07-17	Oki Electric Ind Co Ltd	Frequency converter
JPS62274934A (en) *	1986-05-23	1987-11-28	Nec Corp	Transmitter-receiver
US5982179A (en) *	1997-06-04	1999-11-09	Varian, Inc.	NMR circuit-switch
US6833704B1 (en)	2003-07-21	2004-12-21	Varian, Inc.	Multinuclear wands
US7639102B2 (en) *	2008-02-20	2009-12-29	Infineon Technologies Ag	Reconfigurable duplexing couplers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2789210A (en) *	1952-12-30	1957-04-16	Sylvania Electric Prod	Mixing circuit for microwave frequencies
US2796586A (en) *	1953-06-04	1957-06-18	Raytheon Mfg Co	Impedance matched coupling device
US3234555A (en) *	1961-07-06	1966-02-08	Philco Corp	Modular signal channeling system
US3276019A (en) *	1964-02-11	1966-09-27	Gen Precision Inc	Combined sequential beam switcher and duplexer using microwave circulators

1968
- 1968-10-15 CH CH1539368A patent/CH477132A/en not_active IP Right Cessation
- 1968-12-13 NL NL6817889.A patent/NL165897C/en not_active IP Right Cessation
1969
- 1969-08-26 AT AT815969A patent/AT292790B/en not_active IP Right Cessation
- 1969-09-25 US US861032A patent/US3624508A/en not_active Expired - Lifetime
- 1969-10-13 SE SE14023/69A patent/SE344396B/xx unknown

Also Published As

Publication number	Publication date
NL165897C (en)	1981-05-15
NL165897B (en)	1980-12-15
DE1809993B2 (en)	1977-04-28
CH477132A (en)	1969-08-15
DE1809993A1 (en)	1970-06-25
AT292790B (en)	1971-09-10
SE344396B (en)	1972-04-10
US3624508A (en)	1971-11-30

Publication	Publication Date	Title
AU428130B2 (en)	1972-09-14
AU2374870A (en)	1972-06-29
AU5184069A (en)	1970-07-17
AU6168869A (en)	1971-04-08
AU6171569A (en)	1971-04-08
AU429879B2 (en)	1972-11-09
AU416157B2 (en)	1971-08-23
AU2581067A (en)	1970-02-19
AU4811568A (en)	1974-08-01
AU421558B1 (en)	1970-01-29
AU3789668A (en)	1968-06-20
AU4744468A (en)	1970-06-18
AU3224368A (en)	1969-07-17
AR203075Q (en)	1975-08-14
AU479393A (en)	1974-02-07
BE708888A (en)	1968-07-03
AU4503667A (en)	1970-04-23
AU4558658A (en)	1970-05-07
AU463027A (en)	1971-03-04
AU4270368A (en)	1970-03-05
BE727827A (en)	1969-08-04
AU479894A (en)	1973-08-30
AU4224469A (en)	1970-02-26
AU3083868A (en)	1969-10-30
BE727534A (en)	1969-07-28

Legal Events

Date	Code	Title	Description
1982-08-16	V1	Lapsed because of non-payment of the annual fee