SE462191B - DEVICE FOR FILTER EFFECT ON ANTENNA FOR COMMUNICATION RADIO DEVICES AND WIRELESS PHONES - Google Patents

DEVICE FOR FILTER EFFECT ON ANTENNA FOR COMMUNICATION RADIO DEVICES AND WIRELESS PHONES

Info

Publication number
SE462191B
SE462191B SE8800143A SE8800143A SE462191B SE 462191 B SE462191 B SE 462191B SE 8800143 A SE8800143 A SE 8800143A SE 8800143 A SE8800143 A SE 8800143A SE 462191 B SE462191 B SE 462191B
Authority
SE
Sweden
Prior art keywords
antenna
antennas
transmitter
filter effect
receiver
Prior art date
Application number
SE8800143A
Other languages
Swedish (sv)
Other versions
SE8800143D0 (en
SE8800143L (en
Inventor
U Saldell
Original Assignee
Allgon Antenn Ab
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 Allgon Antenn Ab filed Critical Allgon Antenn Ab
Priority to SE8800143A priority Critical patent/SE462191B/en
Publication of SE8800143D0 publication Critical patent/SE8800143D0/en
Priority to DE68927894T priority patent/DE68927894T2/en
Priority to EP89908727A priority patent/EP0481986B1/en
Priority to PCT/SE1989/000407 priority patent/WO1991001048A1/en
Publication of SE8800143L publication Critical patent/SE8800143L/en
Publication of SE462191B publication Critical patent/SE462191B/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/525Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas

Description

462 191 2 10 15 20 25 30 ett hölje 1. I höljet är anordnat en mottagare 2 och en sändare 3. Apparaten är så utformad att kommunikationen fungerar in och ut samtidigt och således utan att endera mottagare eller sändare stänges av. Apparaten är försedd med dels en antenn 4 som är ansluten till mottagaren och en antenn 5 ansluten till sändaren. Sändare och mottagare arbetar på skilda frekvenser. Företrädesvis är antennen 4 avstämd till mottagaren 2 och antennen 5 är avstämd till sändaren 3. Eventuellt kan antennen 4 vara ansluten till mottagaren via ett enklare filter 6 och antennen 5 kan vara ansluten till sändaren 5 via ett enklare filter 7. Ett duplexfilter som är väsentligt kostsammare än filtren 6 och 7 behöver inte användas vid anordningen enligt fig. 1. 462 191 2 10 15 20 25 30 a housing 1. A receiver 2 and a transmitter 3 are arranged in the housing. The apparatus is designed so that the communication works in and out simultaneously and thus without either receiver or transmitter being switched off. The apparatus is provided with an antenna 4 which is connected to the receiver and an antenna 5 connected to the transmitter. Transmitters and receivers work on different frequencies. Preferably, the antenna 4 is tuned to the receiver 2 and the antenna 5 is tuned to the transmitter 3. Optionally, the antenna 4 may be connected to the receiver via a simpler filter 6 and the antenna 5 may be connected to the transmitter 5 via a simpler filter 7. A duplex filter which is essential more expensive than filters 6 and 7 need not be used with the device according to Fig. 1.

Fig. 2 visar en andra utföringsform och som framgår har antennerna 8 och 9 i detta fall förlagts inuti höljet 1. 'Även i detta fall kan enkla filter 10 och 11 eventuellt förläggas mellan respektive antennanslutningar. Vid ut- föringsformen enligt fig. 2 är det fördelaktigt att an- tennerna 8 och 9 så utformas att strålningsdiagrammet blir osymmetriskt, dvs på så sätt som visas vid sidan av fig. 2. Antennverkan blir således riktad från appa- ratens inre.Medelst denna form av antenn som kan sägas vara riktad antennverkan så minskas ytterligare kraven på prestanda för filtren 10 och 11. Vidare minskas strål- ningen in mot apparatens inuti vid centrum förlagda en- heter och den elektriska felfunktionen för dessa enheter elimineras eller åtminstone minskas.Fig. 2 shows a second embodiment and, as can be seen, the antennas 8 and 9 in this case have been placed inside the housing 1. Also in this case, simple filters 10 and 11 can possibly be placed between the respective antenna connections. In the embodiment according to Fig. 2, it is advantageous that the antennas 8 and 9 are designed so that the radiation diagram becomes asymmetrical, ie in the manner shown next to Fig. 2. The antenna action is thus directed from the interior of the apparatus. In the form of an antenna that can be said to be directional antenna action, the performance requirements for filters 10 and 11 are further reduced, and the radiation towards the units inside the unit located at the center is further reduced and the electrical malfunction of these units is eliminated or at least reduced.

Antenner med strålningsverkan på så sätt som visas i fig. 2 kan också anordnas vid antennerna enligt fig. 1.Antennas with radiating action in the manner shown in Fig. 2 can also be arranged at the antennas according to Fig. 1.

Med det antennsystem som nu beskrivits kan anslutningar- na mellan antenn och mottagare respektive sändare göras enklare. Antennernas kontakter kan helt enkelt vara av 10 3 462 191 i handeln vanligen förekommande koakialtyp eller annan enkel tYP, Vilket förenklar och förbilligar konstruk- tionen.With the antenna system now described, the connections between antenna and receiver and transmitter can be made simpler. The contacts of the antennas can simply be of the commercially available coacial type or other simple type, which simplifies and reduces the construction.

I fig. 3 visas schematiskt en konstruktion av en antenn med riktad verkan. Antennen enligt fig. 3 kan sägas representera antennen 8 i fig. 2 och antennen innefattar därvid ett metallelement 12 samt ovanför denna liggande antennelement 13. Strâlningsdiagrammet för denna antenn blir i enlighet med diagrammet i fig. 2 överst till vänster. Strâlningsdiagrammet betecknas med A.Fig. 3 schematically shows a construction of an antenna with directional action. The antenna according to Fig. 3 can be said to represent the antenna 8 in Fig. 2 and the antenna then comprises a metal element 12 and an antenna element 13 lying above it. The radiation diagram for this antenna is in accordance with the diagram in Fig. 2 at the top left. The radiation diagram is denoted by A.

För antennen 9 kan användas en konstruktion som ger ett strålningsdiagram enligt B i fig. 2. Den i fig. 3 visade antennen är därvid omvänd.For the antenna 9, a construction can be used which gives a radiation diagram according to B in Fig. 2. The antenna shown in Fig. 3 is then inverted.

Claims (1)

1. 462 191 PATENT KRAV Anordning för filterverkan vid antenner för kommunikations- radioapparater och trådlösa telefoner med sändare och mot- tagare i samma hölje, varvid vid höljet âtskilt från var- andra är anbringat dels en antenn i förbindelse med och av- stämd till sändaren, dels en antenn i förbindelse med och av stämd till mottagaren, k ä n n e t e c k n a d av att res- pektive antenner (8, 9) är förlagda vid motsatta ändar av ap- paraten och med antennverkan riktad från apparaten och att respektive antenn (8, 9) innefattar en metallbas (13) med därifrån riktade antennelement (13), varvid antennerna (8,9) är så orienterade vid höljet, att antennelementen är riktade _utåt från sändare respektive mottagare.1. 462 191 PATENT REQUIREMENTS Device for filtering action on antennas for communication radios and cordless telephones with transmitters and receivers in the same housing, wherein an antenna in connection with and tuned to the transmitter is arranged at the housing separately from each other. , partly an antenna in connection with and tuned to the receiver, characterized in that respective antennas (8, 9) are located at opposite ends of the apparatus and with antenna action directed from the apparatus and that the respective antenna (8, 9 ) comprises a metal base (13) with antenna elements (13) directed therefrom, the antennas (8, 9) being so oriented at the housing that the antenna elements are directed outwards from the transmitter and receiver, respectively.
SE8800143A 1988-01-18 1988-01-18 DEVICE FOR FILTER EFFECT ON ANTENNA FOR COMMUNICATION RADIO DEVICES AND WIRELESS PHONES SE462191B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8800143A SE462191B (en) 1988-01-18 1988-01-18 DEVICE FOR FILTER EFFECT ON ANTENNA FOR COMMUNICATION RADIO DEVICES AND WIRELESS PHONES
DE68927894T DE68927894T2 (en) 1988-01-18 1989-07-12 MEANS OF FILTER EFFECT BY ANTENNA DIVERSITY
EP89908727A EP0481986B1 (en) 1988-01-18 1989-07-12 Means for filter effect by diversity antenna
PCT/SE1989/000407 WO1991001048A1 (en) 1988-01-18 1989-07-12 Means for filter effect by diversity antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8800143A SE462191B (en) 1988-01-18 1988-01-18 DEVICE FOR FILTER EFFECT ON ANTENNA FOR COMMUNICATION RADIO DEVICES AND WIRELESS PHONES

Publications (3)

Publication Number Publication Date
SE8800143D0 SE8800143D0 (en) 1988-01-18
SE8800143L SE8800143L (en) 1989-07-19
SE462191B true SE462191B (en) 1990-05-14

Family

ID=20371098

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8800143A SE462191B (en) 1988-01-18 1988-01-18 DEVICE FOR FILTER EFFECT ON ANTENNA FOR COMMUNICATION RADIO DEVICES AND WIRELESS PHONES

Country Status (4)

Country Link
EP (1) EP0481986B1 (en)
DE (1) DE68927894T2 (en)
SE (1) SE462191B (en)
WO (1) WO1991001048A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4410542B4 (en) * 1994-03-26 2004-07-22 Fuba Automotive Gmbh & Co. Kg Arrangement for the operation of radio equipment
DE19836952A1 (en) * 1998-08-17 2000-04-20 Philips Corp Intellectual Pty Sending and receiving device
SE514773C2 (en) 1998-09-28 2001-04-23 Allgon Ab Radio communication unit and antenna system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1194547A (en) * 1967-11-13 1970-06-10 Burndept Electronics Ltd Portable Radio Transmitting and Receiving Equipment
GB2120905B (en) * 1982-01-25 1986-03-19 Viking Phone Co Inc Cordless telephone
DE3520983A1 (en) * 1985-06-12 1986-12-18 Robert Bosch Gmbh, 7000 Stuttgart ANTENNA FOR A RADIO TRANSMITTER AND RECEIVER
US4672685A (en) * 1986-01-03 1987-06-09 Motorola, Inc. Dual band antenna having separate matched inputs for each band

Also Published As

Publication number Publication date
SE8800143D0 (en) 1988-01-18
EP0481986A1 (en) 1992-04-29
DE68927894D1 (en) 1997-04-24
DE68927894T2 (en) 1997-07-10
EP0481986B1 (en) 1997-03-19
WO1991001048A1 (en) 1991-01-24
SE8800143L (en) 1989-07-19

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