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 PHONESInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/525—Means 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)
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)
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)
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 |
-
1988
- 1988-01-18 SE SE8800143A patent/SE462191B/en not_active IP Right Cessation
-
1989
- 1989-07-12 DE DE68927894T patent/DE68927894T2/en not_active Expired - Fee Related
- 1989-07-12 EP EP89908727A patent/EP0481986B1/en not_active Expired - Lifetime
- 1989-07-12 WO PCT/SE1989/000407 patent/WO1991001048A1/en active IP Right Grant
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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