Ferrite Antenna Core, Any One of Them?

As we know, a ferrite antenna consists of two semiconductor dielectric layers, which are made of a high-frequency conductor and an extremely low-frequency carrier. However, as stated by one embodiment, the ferrite antenna also is given designed for a combined application with a thin PCB antenna, which enables saving on the PCB that could for instance be utilized for the proper alignment of the ferrite antenna with the network antenna and which also enables a better overall antenna performance factor and an improved coupling factor between a ferrite reader and an amplifier. To conclude, this invention relates to the invention of a ferrite antenna core for use in the combined application. Accordingly, it provides an improved solution for improving the overall performance of a device, like the combined antenna, as well as its efficiency, robustness and power handling capabilities.

In one embodiment of the present invention, a thin PCB is used as the cover of a ferrite antenna core, which has one or more conductors formed in a wafer-type structure, wherein the top surface of one of the conductors is provided with a positive charge, while the other one is provided with a negative charge, forming a "D" shaped pattern. These two conductors are provided including one at a high affinity for the positive charge and the other one having a low affinity for the negative charge. This is done so as to create a "tails" configuration of conductors. When these two types of conductors are bonded together via metal oxide coating, a "tunnel" of the electrical field is created between the two layers of conductors, which is formed by the movement of a DC current between the high-frequency current and the low-frequency current, which are formed by the movement of a DC current through the tunnel. The conductors are provided in a "tunnel" that is composed of multiple small holes.

This invention allows the utilization of a ferrite core in the manufacturing of antenna cables. This type of core is highly efficient for a given weight and length of the cable, as it has superior bandwidth due to its small size, and it is also able to provide power handling capabilities, similar to the design of ferrite tubes in the semiconductor industry. To this end, several different variations of this core technology are now available in the market.

As an example, one embodiment of a ferrite antenna core includes a five-arm ferrite core with metal oxides that are electrically bonded to the cover ring of one of its arms, while the other arm is comprised of a low-precision alignment of three metal pieces having a low carbon content, along with a cover ring having a high carbon content. According to one embodiment of this technology, the cable may be wound into a variety of shapes and sizes for use as a connector, switch panel, or conduit to a receptacle. The installation method of a single apparatus depends on the type of core used, since the wires for different components can be coiled or wrapped in a variety of ways. The diameter and length of one's structure will also play a role in the acquisition of a specific configuration for one's application, since larger structures are able to provide a better configuration for connections.

The second embodiment of a ferrite antenna core is made from a two-arm loop antenna arrangement 1000 feet long and five feet wide. The loop consists of a thick, heavy layer of metal foil stretched over a series of smaller metallic arms. The smaller arms are typically made of thin strips of metal with an exposed steel core at their center. Due to the placement and shape of the arms, the top side of this two-arm loop is designed to be slightly angled in order to provide support for a number of different types of communications systems. One such system used in this application is a system that transmits audio signals in digital format, which is commonly referred to as "digital telephone" technology.

The last embodiment is a two-arm hybrid antenna arrangement 1000 feet long and five feet wide. This configuration utilizes a number of individual strands of uncoated aluminum coated wire wound onto larger ones. This design is capable of providing a high degree of mobility, since each individual wire can be run in a series or parallel in order to provide support for larger applications. In addition to being flexible, this design is also capable of providing a small form factor, which is especially helpful in small offices and homes. It is capable of supporting a large number of communications systems, including a single-mode Digital Telephone Network as well as multiple mode Digital Voice Systems.