GB2285538A - Enclosed indoor antenna - Google Patents
Enclosed indoor antenna Download PDFInfo
- Publication number
- GB2285538A GB2285538A GB9400151A GB9400151A GB2285538A GB 2285538 A GB2285538 A GB 2285538A GB 9400151 A GB9400151 A GB 9400151A GB 9400151 A GB9400151 A GB 9400151A GB 2285538 A GB2285538 A GB 2285538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electromagnetic wave
- shaped
- circuit board
- printed circuit
- signals
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
An indoor antenna comprises a small dimension printed circuit board with an etched foil fishbone-shaped electromagnetic wave director element 31, an arch-shaped omnidirectional electromagnetic wave receiver element 32 and an OMEGA -shaped main electromagnetic wave receiver element 33 configured together through soldering to capacitor and resistor components to form a resonant circuit that enables the stable reception of electromagnetic wave signals and the clear transmission of the signals to television receivers and other receiving devices, without having to utilize a conventional outdoor directional antenna. <IMAGE>
Description
ENCLOSED-TYPE INDOOR ANTENNA The enclosed-type indoor antenna invention herein mainly offers a kind of
and it omnidirectional electromagnetic wave reception capabilityAcan be installed indoors and functions as an antenna that receives electromagnetic signals clearly.
Of the conventional television antennas utilized at the present time, the majority are outdoor antennas, which when installed and utilized must be directionally oriented to obtain the reception of clear picture quality. However, after a certain period of time, the direction of the installed antenna is altered or the antenna elements break off due to high velocity wind and other related factors. Changes in the installed antenna direction and the dropping off of the antenna elements will affect the picture quality. Since outdoor antennas are mounted high off the ground, this factor is a potential cause of accidents that may occur during installation or maintenance.. Therefore, conventional outdoor antennas have many impractical aspects that need further improvement.
In view of the foregoing discussion, the inventor of the invention herein has conducted many years of concentrated research in order to offer a kind of enclosed-type indoor antenna that utilizes small dimension printed circuit board with an etched copper foil fishbone-shaped electromagnetic wave director element, an arch-shaped omnidirectional electromagnetic wave receiver element and an Q-shaped main electromagnetic wave receiver element configured together through soldering to capacitor and resistor components to form a resonant circuit that enables the stable reception of electromagnetic wave signals and the clear transmission of the signals to television receivers and other receiving devices to increase reception gain quality without having to utilize a conventional outdoor directional antenna. The invention herein is not only convenient to utilize, it also allows users to save the installation and maintenance costs required for an outdoor antenna, thereby eliminating the shortcomings of a conventional outdoor antenna.
The other major objectives and functions of the invention herein are further described respectively in the drawings below, which after review will provide the examining committeemen with a more detailed understanding of the invention herein.
The following description explains the preferred embodiments of the invention herein, but the description shall not be interpreted as constituting any limitation whatsoever on the invention herein. Therefore, no embellishments or modifications of any kind whatsoever to the invention herein shall be construed as innovations outside the proper scope of the invention herein, for all such embellishments and modifications shall be included under the protection of the claims pertaining to the drawings of the invention herein, of which the brief descriptions of the drawings are:
Figure 1 is an isometric drawing of the invention herein.
Figure 2 is an orthographic drawing of the printed circuit board of invention herein,
Figure 3 is an orthographic drawing of the printed circuit board of the invention herein.
Figure 4 is a schematic drawing of the circuit of the invention herein.
The preferred embodiment of the invention herein mainly includes an enclosure (1) a printed circuit board (2) a resonant circuit (3) and a connection cable (4) of which, as indicated in FIG. 1, the enclosure (1) consists of an upper cover (11) and a lower cover (12) which are assembled together, the upper cover (11) and the lower cover (12) ensconces the printed circuit board (2) and is thus contained within the enclosure (1); as indicated in FIG. 2, the fishbone-shaped electromagnetic wave director element (31) is on the upper surface of the printed circuit board (2), the arch-shaped omnidirectional electromagnetic wave receiver element (32) is positioned just beyond the top edge of the fishbone-shaped electromagnetic wave director element (31) and the S2-shaped main electromagnetic wave receiver element (33) is positioned just beyond the bottom edge of the fishbone-shaped electromagnetic wave director element (31); as indicated in FIG. 3, the capacitors Cl and C2 are soldered between the director wave element (31) and the receiver wave element (32) and, furthermore, the resistors RI and R2 are soldered between the receiver element (32) and the receiver element (33), while at the throughholes of the two traces from the receiver element (33) are soldered the single leads of capacitors C3 and C4, which are each then connected in series for output to the connection cable (4), thus enabling the connection cable (4) to receive the electromagnetic wave signal and complete transmission to the antenna input terminals of a television (or other type of receiver), with all received signals first processed though resonant circuit (3) indicated in FIG. 4.
Based on the foregoing description of each component assembly and respective drawings of the preferred embodiments, it can be understood that when an electromagnetic wave signal is received, since the frequency of the received electromagnetic waves is extremely high, therefore, the copper foil portion [i.e., the wave director element (31), the receiver elements (32) and (33)] of the printed circuit board (2) directs the electromagnetic waves to through the inductors, resistor components and the capacitors comprising an LCR circuit with the object of attaining a tuned resonance; furthermore, the capacitors Cl, C2, C3 and C4 as well as the resistors Rl and R2 of the resonant circuit (3) can all be altered in value to adjust the impedance and thereby change the resonance frequency of the resonant circuit (3) to meet the varying transmitting frequencies in different regions, and the adjustment in resonant frequency can be performed at the time of manufacturing.
Regarding the foregoing description of the preferred embodiment of the finished product, the preliminary tests can be conducted to verify the projected functions of the invention herein, and the following test results utilizing the listed component values are worthy of reference during inspections:
Capacitors C1=150 C2=150 F
C3=150 F C4=150 F
Resistors R1=5.6K# R1=2.4K#
Frequency Range Gain Impedance (MHz) (dB) (#) 88~108 4 300 170~230 4 75/300 500-700 4 300
Claims (1)
- CLAlhlS What is claimed is:1. A kind of enclosed-type indoor antenna'that mainly consists of an enclosure, a printed circuit board, a resonant circuit and a connection cable that are assembled together, and the entire unit, the printed circuit board and the electromagnetic wave director elements are innovative in that the invention herein utilizes a printed circuit board with an etched copper foil fishbone-shaped electromagnetic wave director element, an arch-shaped omnidirectional electromagnetic wave receiver element and an Q-shaped main electromagnetic wave receiver element configured together through soldering to capacitor and resistor components to form a resonant circuit that enables the stable reception of electromagnetic wave signals and the clear transmission of the signals to television receivers and other receiving devices to increase reception gain quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9400151A GB2285538A (en) | 1994-01-06 | 1994-01-06 | Enclosed indoor antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9400151A GB2285538A (en) | 1994-01-06 | 1994-01-06 | Enclosed indoor antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9400151D0 GB9400151D0 (en) | 1994-03-02 |
| GB2285538A true GB2285538A (en) | 1995-07-12 |
Family
ID=10748448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9400151A Withdrawn GB2285538A (en) | 1994-01-06 | 1994-01-06 | Enclosed indoor antenna |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2285538A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1313019A (en) * | 1971-06-28 | 1973-04-11 | Jfd Electronics Corp | Antenna |
| GB2156159A (en) * | 1984-02-23 | 1985-10-02 | Lu Ke Chang | Antenna |
| GB2260065A (en) * | 1991-09-25 | 1993-03-31 | Tokimec Inc | Detectable device and movable item detecting system |
-
1994
- 1994-01-06 GB GB9400151A patent/GB2285538A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1313019A (en) * | 1971-06-28 | 1973-04-11 | Jfd Electronics Corp | Antenna |
| GB2156159A (en) * | 1984-02-23 | 1985-10-02 | Lu Ke Chang | Antenna |
| GB2260065A (en) * | 1991-09-25 | 1993-03-31 | Tokimec Inc | Detectable device and movable item detecting system |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9400151D0 (en) | 1994-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |