An electric dipole antenna and method of use thereof

An electric dipole and antenna technology, which is applied in folded antennas, resonant antennas, mid-position feeds between antenna endpoints, etc., can solve problems such as low tuning range, limited clinical application, and deterioration of signal-to-noise ratio, achieving increased The effect of detecting depth and detection area, improving transmission efficiency, and improving signal-to-noise ratio

CN103915689BActive Publication Date: 2019-07-19SHANGHAI UNITED IMAGING HEALTHCARE
4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-07-19

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an electric dipole antenna which includes antenna feelers, and a match circuit and a transmission / reception port, both of which are connected with the antenna feelers. The lengths of the antenna feelers are adjusted through manual operation or an adjustment structure. The invention also provides a use method of the electric dipole antenna. The length of the electric dipole antenna can be adjusted so that the resonance frequency can be adjusted according to the difference of detection objects or difference of positions relative to the detection objects and thus the resonance frequency is at a work frequency. Therefore, a problem that an electric dipole antenna in the prior magnetic resonance system cannot be tuned or the tuning range is small and leads to extra loss is solved. Therefore, the electric dipole antenna is stable in work and applicable to clinical application of a high-field magnetic resonance system.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of medical equipment, in particular to an electric dipole antenna and a method for using the same. Background technique

[0002] Recent studies have shown that in high-field magnetic resonance systems, traditional radio frequency body coils and surface coils cannot meet the requirements of obtaining the best signal-to-noise ratio at the center of the detected object, and it is necessary to introduce a detection device with an unclosed current path, that is, an electric dipole The sub-antenna can obtain the most ideal current distribution. And in the high field, the deflection caused by the dielectric constant of the detected object in the transmitting field and receiving field of the electric dipole antenna is small, so the penetration depth is large. In this case, a variety of electric dipole antennas have appeared in the field of magnetic resonance in recent years, such as the single-side adapted dipole antenna pro...

Examples

Embodiment Construction

[0036] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0037] Secondly, the present invention is described in detail by means of schematic diagrams. When describing the embodiments of the present invention in detail, for convenience of explanation, the schematic diagrams are only examples, which should not limit the protection scope of the present invention.

[0038] The present invention provides an electric dipole antenna, comprising: an antenna antenna, a matching circuit and a transmitting / receiving port, the matching circuit is connected in parallel to both ends of the tran...