Capacitor-based Roland C receiving antenna

A technology for receiving antennas and capacitors, applied to antennas, antenna grounding devices, electrical components, etc., can solve the problems of reducing antenna efficiency, signal energy loss, affecting antenna receiving performance, etc. Effect

Active Publication Date: 2022-03-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (2) The Q value of the magnetic antenna after tuning is very high. In order to ensure the normal passage of the signal, a resistor is usually added to reduce the Q value, which will cause a serious loss of signal energy and reduce the antenna efficiency.
[0006] (3) There is a phase inversion problem in the magnetic antenna. When the cross-loop magnetic antenna receives the signal, the phase will change by 180°, and phase correction is usually required when using it.
[0007] To sum up, both the whip antenna and the magnetic antenna have some shortcomings that seriously affect the receiving performance of the antenna

Method used

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  • Capacitor-based Roland C receiving antenna
  • Capacitor-based Roland C receiving antenna
  • Capacitor-based Roland C receiving antenna

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "end", "side" etc. is based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplif...

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Abstract

According to an antenna body, an induction pole plate, a grounding pole plate and a dielectric substrate are connected together through plastic columns to form a plate capacitor, an alternating electric field in the space is coupled, charges are generated on the induction pole plate of the capacitor, and the dielectric substrate is connected with the induction pole plate of the capacitor. And a potential difference is generated between the capacitor and the grounding polar plate, and enters an active circuit through a signal transmission line. The active circuit is used for carrying out amplification and 90-110 KHz band-pass filtering on a signal received by the antenna; tests show that the received Roland C signal is high in signal-to-noise ratio, clear in envelope and stable.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a capacitor-based Loran-C receiving antenna. Background technique [0002] Loran (Long Range Navigation, Loran) is one of the most widely used land-based radio navigation systems in the world, and the Loran C system is one of the Loran systems. The working frequency of the Loran C signal is 100kHz, and the signal coverage is very wide. It is often used in the fields of navigation, positioning and timing (Positioning Navigation and Timing, PNT), as well as scientific research such as ground wave propagation, underwater military communication, and satellite / Loran C integrated navigation. Research. Today's navigation method is mainly satellite navigation, but satellite navigation is easily affected by solar activities, and the propagation form of Loran C signal is mainly through the propagation form of ground wave, and its phase is not easy to change during the propaga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/48H01Q23/00
CPCH01Q1/36H01Q1/48H01Q23/00Y02D30/70
Inventor 师振盛范源王力谢斌斌
Owner XI AN JIAOTONG UNIV
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