CN2297018Y - Backfire receiving antenna for TV set - Google Patents

Backfire receiving antenna for TV set Download PDF

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Publication number
CN2297018Y
CN2297018Y CN 97217553 CN97217553U CN2297018Y CN 2297018 Y CN2297018 Y CN 2297018Y CN 97217553 CN97217553 CN 97217553 CN 97217553 U CN97217553 U CN 97217553U CN 2297018 Y CN2297018 Y CN 2297018Y
Authority
CN
China
Prior art keywords
reflector
vertical rod
big
fixed mount
small
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN 97217553
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Chinese (zh)
Inventor
霍士林
Original Assignee
霍士林
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 霍士林 filed Critical 霍士林
Priority to CN 97217553 priority Critical patent/CN2297018Y/en
Application granted granted Critical
Publication of CN2297018Y publication Critical patent/CN2297018Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a back-transmitting type receiving antenna for TV sets, composed of a big reflector, a small reflector, a vertical rod, a fixing frame and a U-frequency vibrator. With the fixing frame, the annular U-frequency vibrator whose point 0 is connected in series with an induction coil is installed between the big reflector and the small reflector. The small reflector is arc-shaped and is installed at the upper part of the vertical rod. The big reflector is installed at the lower part of the vertical rod. The annular U-frequency vibrator is arranged between the big reflector and the small reflector, and the received signals are excited through multiple reflections and are continuously enhanced, so that the receiving sensitivity and the sharpness of the receiving images are enhanced. The utility model is an ideal receiving antenna for TV sets.

Description

Used as television back reflection type reception antenna
The utility model relates to a kind of used as television back reflection type reception antenna, and particularly TV belongs to television set reception antenna technical field with all-channel back reflection type reception antenna.
Existing television set reception antenna generally all has director, and director is towards the direction of TV station, and range of receiving is narrower, and is when especially receiving the far from the table signal, not fogging clear.Invented " back reflection type reception antenna " in person for this reason, patent No. ZL952099225, it has overcome many deficiencies of prior art, but still have signal a little less than, not high deficiency gains.
The purpose of this utility model is to overcome the deficiency of ZL952099225 patent, and provides be connected to induction coil between big or small reflector at 0 of a kind of U frequency oscillator, and received signal is strong, and is highly sensitive, the used as television back reflection type reception antenna of clear picture.
The purpose of this utility model is achieved in that it comprises big or small reflector, vertical rod, fixed mount, and big reflector is installed in the bottom of vertical rod by fixed mount, and little reflector is installed in the top of vertical rod by fixed mount.Its structural feature is that annular U frequency oscillator is installed between the large and small reflector by fixed mount, and its 0 has induction coil.
The purpose of this utility model can also reach by following technical measures: little reflector is curved.
The utlity model has following advantage compared to existing technology:
1, range of receiving is wide.Because U oscillator frequently works between two reflectors, signal strengthens through repeatedly reflecting, encourage constantly, so can clearly receive the program of TV station far away.
2,0 of U frequency oscillator is connected with induction coil, causes the receiving sensitivity height.
3, U, V frequency oscillator reasonably makes up, and has greatly improved gain.
4, because director is not set, so axially short, reception is equivalent to the 15-20 unit.
The explanation of accompanying drawing drawing:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model U oscillator structural representation frequently.
Among the figure, fixed mount (1), vertical rod (2), big reflector (3), U be oscillator (4), little reflector (5) frequently, induction coil (6).Distributing point (7,8).
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
This this with novel improvement of I being invented " back reflection type reception antenna " ZL952099225.Form frequently by oscillator (4), vertical rod (2), fixed mount (1) by big reflector (3), little reflector (5), U for the utility model.Tubular plastic bar is adopted in vertical rod (2), and fixed mount (1) adopts plastic products.The aluminum pipe of big reflector (3) V oscillator employing frequently just ∮ 8-10mm, pipe range 480mm.Be fixedly mounted on the bottom of vertical rod (2) with fixed mount (1).U frequently oscillator (4) is an annular as Fig. 2, is installed in the middle part of vertical rod (2) with fixed mount (1), greatly between reflector (3) and the little reflector (5).Its 0 position induction coil (6) of connecting, the effect of induction coil (6) are the sensitivity that improves received signal.Distributing point (7,8) is fixed on fixed mount (1), and draws wiring by distributing point (7,8) and be connected with television set.Little reflector (5) is curved, adopts the aluminium sheet compression moulding of thick 0.5mm, and diameter is 2.5 times of U frequency oscillator, is installed in vertical rod (2) top.
Operation principle of the present utility model: the utility model is according to the backfire antenna principle design, annular U frequency oscillator (4) is installed between the large and small reflector (3,5), during received signal, signal constantly strengthens through repeatedly reflection excitation, U has installed induction coil additional on the oscillator (4) frequently, greatly improve the sensitivity of received signal, when receiving the TV programme of U channel, big reflector (3) is a V oscillator frequently, play the reflector effect, under the interaction of U, V frequency oscillator, greatly improve gain.

Claims (2)

1, a kind of used as television back reflection type reception antenna, comprise big or small reflector, vertical rod, fixed mount, big reflector is installed in the bottom of vertical rod by fixed mount, little reflector is installed in the top of vertical rod by fixed mount, it is characterized in that annular U frequency oscillator is installed between the large and small reflector by fixed mount, its 0 has induction coil.
2, used as television back reflection machine reception antenna according to claim 1 is characterized in that little reflector is curved.
CN 97217553 1997-05-14 1997-05-14 Backfire receiving antenna for TV set Expired - Fee Related CN2297018Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97217553 CN2297018Y (en) 1997-05-14 1997-05-14 Backfire receiving antenna for TV set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97217553 CN2297018Y (en) 1997-05-14 1997-05-14 Backfire receiving antenna for TV set

Publications (1)

Publication Number Publication Date
CN2297018Y true CN2297018Y (en) 1998-11-11

Family

ID=33934080

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97217553 Expired - Fee Related CN2297018Y (en) 1997-05-14 1997-05-14 Backfire receiving antenna for TV set

Country Status (1)

Country Link
CN (1) CN2297018Y (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee