TWI248230B - Method for manufacturing a helix antenna - Google Patents

Abstract

A method for manufacturing a helix antenna. The method includes the steps of: providing a ceramic cylinder with a central through hole, a first annular surface and a second annular surface, wherein the first annular surface is opposite to the second annular surface, and the central through hole is formed between the first and second annular surfaces; providing a flexible printed circuit board, with a feeding metal strip extending to the exterior thereof; and swirling and attaching the flexible printed circuit board to the circumferential surface of the ceramic cylinder.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a helical antenna, and more particularly to a method of manufacturing a helical antenna which can reduce manufacturing costs. [Prior Art] In general, a helical antenna (he 1 i X ante η na) has been widely used in global positioning systems (GPS) and communication systems, which can be used to receive weak satellites. Signal. The present invention discloses a method for manufacturing a helical antenna, and the frequency thereof is mainly for a circularly polarized radiation of a helical antenna = lrcuIarly polarized radlatlon). The frequency may be greater than 2 〇. 〇mhz clothes w method. f First, as shown in Fig. 1A, a metal (copper) layer 2 is first coated (electroplated) on a solid ceramic surface, and then a center through hole 3 is drilled into the cylinder 1. Then, with a life ^ bei (not shown) to the solid pottery cylinder! The metal (copper) layer j糸 is etched, and after the etching is completed, the solid pottery cylinder is θ 4 inch 疋 shape, then As shown in the figure, the 'c〇ax 1 a 1 ca b 1 e ) 4 is inserted into the solid ceramics and the coaxial cable is bent and the exposed copper core 41 is bent. Soldering to the metal (copper) layer 2 on the center perforation 3 of the two columns 1, the electrical connection between the tops of the coaxial 5 waste cylinders 1 can be completed. At this time, the exposed steel core 4 is electrically, · '4 and metal (copper) layer 2 (feeder). It is worth noting that since the electricity is fed into the shape of a signal, the laser etching system is in the process of the metal (the process of the three-dimensional ceramic circle 1 can not be accurately performed, because layer 2 is specific Shape etched the mouth and makes one of the spiral antennas 1248230 V. Description of the invention (2) Some important parameters 5 such as radio frequency (^ · ^ - - (lmPedance at : Τ / ^ # " seven w to the temple, may not meet the requirements , Shi Bu b 'that must be fine-tuned by a test adjustment device. Clothing (not shown) to the spiral antenna 42 to explain the parameters of the spiral antenna fine-tuning steps. First,,,,:,:罘The spiral antenna is connected to the test adjustment through, the line ... to measure its relative phase at some specific position... Uelahve phase) size and current amplitude (amputude current) value, etc. Then, according to the above shot Etching the system to re-use the top of the solid ceramic cylindrical crucible to form a plurality of openings 2 1, such as the position, shape and size of the i-D, / (copper) layer 2 into the openings 21 Count 2: Performing fine-tuning snails The inductance value of the antenna, which in turn makes the circularly polarized radiation frequency above the screw = 2 0 0Mhz. Tian, Spring can have, however, I point in the manufacturing process of the above-mentioned helical antenna. Hundreds of first, the exposed copper core The process of bending and welding to the metal (copper) layer 2 on the top of the old enamel clip will increase the system and the inconvenience of the cylinder 1. Furthermore, the laser etching system is very expensive. The required time is about to be replaced after about 1500 hours of use, so it will be the cost of the laser head manufacturing. The same day, using the laser etching system to "etch the antenna" is very time consuming. In addition, due to the laser etching of the copper layer 2 into the (copper) layer 2 in the process of etching in a specific shape, the system must be produced in the process of the metal, so each spiral antenna must be "on the same day"

Page 7

P 0746-A40343TWF(N2); HTC93030-0-TW; HAWDONG.ptd 1248230, invention description (3) The etch etching system is used to fine-tune the parameters to additionally form a complex on the metal (copper) layer 2 on the solid ceramic top. The above-mentioned parameter fine-tuning process of the opening "21, rounding 1 is not only time-consuming, but also increases the system, and therefore, in view of the above, the object of the present invention is to provide a =^, this. The manufacturing method of the antenna can make the manufacture of the helical antenna low, the manufacturing process is simple, and the manufacturing time is shortened. Sub-mass manufacturing [SUMMARY OF THE INVENTION] The present invention basically employs the features detailed below to address the problems. That is, an object of the present invention is to provide a method for manufacturing the above-mentioned antenna, which comprises the steps of: lifting a spiral, wherein the ceramic cylinder has a central perforation and a first circular ring; a second circular ring surface, the first annular surface is opposite to the second surface and the surface, the central perforation is formed between the first annular surface and the second annular surface; providing a flexible printed circuit The board, wherein the flexible P-ring board has a feed metal strip extending from the flexible printed circuit brushing circuit and winding and attaching the flexible printed circuit board to the outside of the ceramic 2; The circumference of the column is further according to the above object, further comprising a step of: feeding the feeding of the first ring surface of the ceramic cylinder through the center through hole, the soil strip feeding metal strip extending to the second ring Outside the surface. In order to achieve the above object, the flexible printed circuit board further has a strip extending beyond the flexible printed circuit board. i also according to the above purpose, which further includes a step of

1248230 V. INSTRUCTIONS (4) I : : Ϊ The surface of the first ring of the 柱 3 column passes through A ^ ^^' ' and according to the above purpose, the soft: f:: outside. M makes the ceramic cylinder of the moon have an electric P-brush circuit board and is adjacent to the ceramic circle 1 and the soft printed electricity:;;! Equivalent to the soft printing, etc.; Γί: and at least - the second metal strip further has at least a first strip, the first metal strip is parallel to the first metal strip, and the soft printing The "metal" of the board is a specific metal strip. The slats, and the grounded metal strips, according to the above object, are formed by electroforming in the soft printed electricity: and the first, according to the above purpose, the first: The printing method is formed on the flexible printed circuit: and the first... and the soft print according to the above purpose. Impedance match value. The board has a specific two

Another object of the present invention is to provide a bracket: a Tauman cylinder having a central perforation, f ^ j days, which encloses a second annular surface, wherein the first circle, the % surface has 2 annular surfaces And the central perforation is formed between 'two, between the first and second annular surfaces; and a flexible printed circuit R having a surface and a circumferential surface of the ceramic cylinder, the ground winding and I has a -feed metal strip that extends over the soft print:

0746-A40343TWF(N2); HTC93030-0-TW; HAWDONG.ptd Page 9 1248230 5. Invention description (5) and extending from the surface of the first ring through the central perforation to the second ring surface Outside. The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] A preferred embodiment of the present invention will be described with reference to the drawings. First, as shown in Fig. 2A, a ceramic cylinder 11 is provided, and the ceramic cylinder 110 has a central through hole 111, a first annular surface 112, and a second annular surface 113. The first annular surface 112 is opposite the second annular surface 113, and the central perforation 111 is formed between the first annular surface 11 2 and the second annular surface 1 1 3 . Then, as shown in FIG. 2B, a flexible printed circuit board (FPPCB) 1202 has been provided which has been pre-adjusted in parameters. Here, the soft printed circuit with parameter fine adjustment is preliminarily = 2 0 means that the important parameters such as the radio frequency (RF) size and impedance matching are pre-adjusted, and in the present embodiment, the impedance matching condition of the flexible printed circuit board 120 is at the receiving frequency of 1 5 75. At 42MHz, the impedance is 50 Ω. As shown in Fig. 2, the length L of the flexible printed circuit board 120 is equal to the length of the production and the circumference of the circumference (i.e., the cylinder of the ceramic cylinder 11 is expanded to the outer circumference of the surface 112 or the second annular surface 113. The height of the column is higher than that of the second column. The width w of the flexible printed circuit board is equal to the radius of the ceramic circle. ' Still as in the 2B figure#, the flexible printed circuit board

Page 10 1248230 V. INSTRUCTION DESCRIPTION (6) 120 further includes two first metal strips 131, a second metal strip 132, a metal strip 133, and a grounded metal strip 134. The first metal strip 131 is parallel to the second metal strip 132, and the first metal strip 131 and the second metal strip 1 2 are inclined at a certain angle θ to one side of the flexible printed circuit board 丨2〇. The feed metal strip 133 is simultaneously connected to the two first metal strips 131, and the feed metal strips 133 extend beyond the flexible printed circuit board 12''. On the other hand, the grounding metal strip 134 is simultaneously connected to the two second metal strips 132, and the grounding metal strip 134 extends beyond the flexible printed circuit board 12''. Fen f 'as shown in Figure 3' will be wrapped with a flexible printed circuit board 1 20 winding 1 33 attached to the earthen stone: two 1 〇 on the circumferential surface 'this time' feeding metal strip 1 3 And the grounding metal strip 34 is located above the 1 1 surface of the ceramic cylinder. Then, if the fourth 冃%-^ 矛 咏 咏 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 弟 弟 弟 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Stretching at =^: the town into the metal strip 133 and the grounding metal strip 134 extending over the ceramic 0 column 1 1 〇 二 二 圆环 圆环 圆环 i i i i 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 As described above, since the first metal strip 131 of the soft path and the side of the second metal strip i 3 ^ circuit board 120 are on the side of the π illusion printed circuit board 120, when it is softly wound and attached to the ceramic-bright cylinder 11 The circumferential surface U 20 131 of the crucible and the second metal strip 132 will be on the metal strip no. The method of 4& surrounds the pottery cylinder. It is worth noting that the first metal strip 131 and the second metal are formed on the soft printing by electromine or printing, or the flexible printed circuit board 12 () board 120 ^ on the substrate or

0746-A40343TWF(N2);HTC93030-0.TW;HAWDONG.ptd Page 1 1248230

V. DESCRIPTION OF THE INVENTION (7) A first metal strip 131 and a second metal strip 132 are printed. ^ ^, the screw antenna (10) of this embodiment has the advantage of wearing. First of all, the manufacturer's exposed copper core 41 of this embodiment is bent and welded to the solid pottery cylinder! The process on layer 2 can reduce the profit of the spiral antenna. In addition, the spiral antenna i (10), slightly laser etching system and test make / " ^ ^ , .1ππ &, flying with the use of I can significantly reduce the screw's 'causes. In addition, because of the flexible printed circuit board 1 20: important parameters in the winding and attached to the ceramic cylinder丨丨〇 The front surface of the circumferential surface has been adjusted first, so that the process of fine-tuning the parameters by the test adjustment device and the laser money engraving system can be omitted, thereby reducing the manufacturing cost and manufacturing time of the helical antenna 100. In addition, the flexible printed circuit board 120 of the present embodiment can have a singularity, so that the helical antenna 1 can be easily mass-produced, thereby improving its productivity. Although the present invention has been disclosed in the preferred embodiment On the top, but it is not used Limit the present invention, any of those skilled in the art that without departing from the spirit of the invention and scope, it is intended that the modifications and variations thus protect the invention protection scope as defined by appended after when view patented scope and their equivalents.

1248230

0746 -A40343TWF(N2);HTC93030-0-TW;HAWDONG.p t d Page 13 1248230

0746-A40343TWF(N2);HTC93030-0-TW;HAWDONG.ptd Page 14

Claims (1)

1248230 VI. Patent Application Hole 1. Lifting surface phase ring table A screw for a ceramic first circle for this surface and the provision of a soft one with a feed metal on the soft surface. 2. The application method further includes a manufacturing method for feeding the center through the L, the outer 0-rotating antenna, comprising the following steps: a porcelain cylinder, wherein the ceramic cylinder has a central through-ring surface and a second a circular ring surface, the second annular surface of the first annular ring, the central perforation is formed between the first second annular surface; a printed circuit board, wherein the flexible printed circuit board has a strip extending And the manufacturing step of the spiral antenna described in the first aspect of the patented circuit of the circumference of the printed circuit board; and the first step of the metal strip from the ceramic cylinder The surface of the ring is passed through to extend the feed metal strip to the second annular surface as in the application, the soft printing method, which extends beyond the 4. method, further outside the center. 5. The method of manufacturing the spiral antenna according to the second aspect of the patent scope has a grounded metal strip which is outside the printed circuit board. The method of manufacturing the spiral antenna according to claim 3, wherein the metal strip passes through the first annular surface of the ceramic cylinder to extend the ground metal strip to the second In the manufacture of a spiral antenna according to the third aspect of the patent application, the length of the flexible printed circuit board is equal to the length of the ceramic cylinder. 0746 - A40343TWF(N2); HTC93030-0 -TW; HAWDONG. p td Page 15 1248230 VI. Scope of Application The circumferential length and the width of the flexible printed circuit board are equal to the height of the ceramic cylinder. 6. The method of manufacturing a helical antenna according to claim 5, wherein the flexible printed circuit board further has at least one first metal strip and at least one second metal strip, the first metal strip being parallel to The second metal strip is inclined at a specific angle to one side of the flexible printed circuit board, the feed metal strip is connected to the first metal strip, and the second metal strip is attached to the first metal strip A ground metal strip is attached to the second metal strip. 7. The method of manufacturing a helical antenna according to claim 6, wherein the first metal strip and the second metal strip are formed on the flexible printed circuit board by electroplating. 8. The method of manufacturing a helical antenna according to claim 6, wherein the first metal strip and the second metal strip are formed on the flexible printed circuit board by printing. 9. The method of manufacturing a helical antenna according to claim 1, wherein the flexible printed circuit board has a specific impedance matching value. A helical antenna comprising: a ceramic cylinder having a central perforation, a first annular surface, and a second annular surface, wherein the first annular surface is opposite the second circular surface a ring surface, and the central perforation is formed between the first annular surface and the second annular surface; and a flexible printed circuit board is wound and attached to the circumferential surface of the ceramic cylinder, wherein The flexible printed circuit board has a feed metal strip, 0746-A40343TWF(N2); HTC93030-0-TW; HAWDONG.ptd Page 16 1248230 6. The patent application scope extends beyond the flexible printed circuit board and passes through the center through the first ring surface. And extending beyond the surface of the second ring. 11. The spiral antenna of claim 10, wherein the flexible printed circuit board further has a grounded metal strip extending beyond the flexible printed circuit board and from the first ring The surface extends through the central aperture and extends beyond the second annular surface. The spiral antenna according to claim 11, wherein the length of the flexible printed circuit board is equal to the circumference of the ceramic cylinder and the width of the flexible printed circuit board is equal to the ceramic cylinder. The spiral antenna of claim 12, wherein the flexible printed circuit board further has at least one first metal strip and at least one second metal strip, the first metal strip being parallel In the second metal strip, the first metal strip and the second metal strip are inclined at a specific angle to one side of the flexible printed circuit board, and the feed metal strip is connected to the first metal strip, and The grounding metal strip is connected to the second metal strip. The spiral antenna according to claim 13 wherein the first metal strip and the second metal strip are formed on the flexible printed circuit board by electroplating. The spiral antenna according to claim 13 wherein the first metal strip and the second metal strip are formed on the flexible printed circuit board by printing. The spiral antenna of claim 10, wherein the flexible printed circuit board has a specific impedance matching value. 0746-A40343TWF(N2);HTC93030-0-TW;HAWDONG.ptd Page 17