Multifunctional integrated antenna

Abstract

The invention discloses a multifunctional integrated antenna, which comprises a base and a shell covered on the base, wherein a first antenna module for receiving and processing GPS (Global Positioning System) signals, a second antenna module for receiving and processing television broadcasting signals and a third antenna module for receiving and processing radio broadcasting signals are arranged on the base; and various signals received and processed by the first, second and third antenna modules are output through a feeder line arranged on the base and / or the shell. Functions such as radio broadcasting, television broadcasting, GPS signal receiving and the like are integrated, so that the requirement on multiple functions is met, the practical size of the antenna is reduced, the space arrangement simplicity of the antenna and a wiring harness space of the antenna is realized, and the sharing and modular degrees are increased. The multifunctional integrated antenna can be arranged in an open roof space of a vehicle, so that the signal receiving directivity and sensitivity of each antenna module are enhanced, and the signal interference of electrical appliance components in the vehicle on the antenna and the signal interference among antennae are reduced.

Description

【Technical field】 [0001] The present invention relates to an antenna, in particular to a multifunctional integrated antenna, which is especially suitable for being used as a vehicle antenna and installed on various vehicle devices. The invention belongs to the technical field of communication. 【Background technique】 [0002] There are various forms of receiving antennas in the prior art. For example, the forms of receiving antennas widely used in the automotive field mainly include whip antennas, roof shark fin antennas, glass printed antennas, and hidden antennas in cars. Each antenna has the following advantages and disadvantages: [0003] The whip antenna is mainly used to realize the function of receiving amplitude modulation (AM) and / or frequency modulation (FM) radio broadcasting, and it partially integrates the function of GPS signal reception. However, the whip antenna has the shortcomings of long size and single function, which will have a certain impact on the ap...

AI Technical Summary

Problems solved by technology

The design of the antenna is relatively complicated, and a large number of virtual verifications, system-level tests and vehicle-level tests are required during the development stage, especially for the glass antenna arranged on the rear windshield. Adding components such as antenna filters to the defogging circuit will inevitably increase design difficulty and manufacturing costs

In addition, the glass printed antenna has obvious directionality for signal reception, which may lead to a decrease in antenna performance in some cases

[0006] The hidden antenna in the car is currently used more often as the built-in GPS receiving antenna in the instrument panel, but this antenna is susceptible to electromagnetic interference from other electrical components in the car, and it needs to be specially designed to prevent signal interference from the interior components or the body. occlusion and shielding

[0007] Therefore, when attempting to use these antennas with different functions, it is necessary to design installation points for them and specially arrange wiring harnesses to avoid the above-mentioned various problems, which will cause great troubles and cause the fact that difficult to achieve effectively

For example, although a miniaturized antenna for basic services including radio reception, cell phone reception, and GPS reception is disclosed in the Chinese invention patent application entitled "Integrated Multi-service Automotive Antenna" with publication number CN1511356A, the publication number is CN1816943A, Chinese invention patent application titled "Antenna System for Motor Vehicles" discloses antenna structures including radio antennas, mobile phone antennas, and satellite signal antennas. However, they cannot satisfactorily overcome the above drawbacks, and still There are many deficiencies such as incomplete functions, mutual interference, unsatisfactory directionality of received signals, etc.

[0008] In addition, when the above-mentioned multiple antennas with respective functions are installed on vehicles, for example, since there are many different vehicle platforms, it is necessary to redesign the antenna system many times, which has problems due to sharing and modularization. The low degree of modernization results in a serious waste of manpower and material resources

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