Terahertz substrate integrated waveguide multi-channel power divider

A substrate-integrated waveguide and power divider technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve problems such as limitations, circuit miniaturization and effective heat dissipation, and achieve reduction in transmission loss, output signal amplitude and phase consistency Good, low-loss effect

Inactive Publication Date: 2015-03-04
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

The traditional waveguide space power combining technology is limited due to the waveguide size and processing technology in the THz frequency band; the free space array power combining technology limits its application in the THz frequency band due to the radiatio

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  • Terahertz substrate integrated waveguide multi-channel power divider
  • Terahertz substrate integrated waveguide multi-channel power divider
  • Terahertz substrate integrated waveguide multi-channel power divider

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Embodiment Construction

[0018] The advantages of the present invention are illustrated below by way of example.

[0019] Example 1: If figure 1 As shown, the terahertz substrate integrated waveguide 4-way power divider proposed by the present invention is realized by using a 2-layer substrate integrated waveguide structure, which includes the following parts: input substrate integrated waveguide port, 4 output substrates Integrated waveguide port, input substrate integrated waveguide H-plane horn antenna, 4 output substrate integrated waveguide H-plane horn antennas, air lens and finite period air phase grating.

[0020] The input / output H-plane horn antenna is realized by metallized through holes on the substrate, which is convenient for design. The air lens is realized by opening a concave air groove on the substrate. Since the relative dielectric constant of the substrate is greater than that of air, the concave air lens has the function of beam convergence. The finite-period air phase grating i...

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Abstract

The invention relates to a terahertz substrate integrated waveguide multi-channel power divider adopting an air lens, suitable for terahertz (THz) frequency band. Input and output adopt substrate integrated waveguide H-surface horn antennas for feeding and receiving energy; a medium substrate layer is slotted to form the air lens and finite periodic air phase gratings, which can be effectively used for conversion and distribution of wave beam; by reasonably designing the air lens and the finite periodic air phase gratings, the single-layer double-channel power division output can be performed, and by using N (N is a natural number) layers of medium substrates, the 2*N-channel array power division/synthesis can be performed; the signal transmission loss is reduced to the maximum extent. The multi-channel power divider has excellent characteristics of high efficiency, miniaturization, stable performance, good input standing-wave ratio and the like, has the advantages of good consistency of signal amplitudes/phases of power division output ports and the like, is mainly used for THz power synthesis amplification systems, phased-array antenna feed networks and the like, and has a wide application prospect in THz systems of communication, radar, measurement and control and the like.

Description

technical field [0001] The invention relates to a substrate-integrated waveguide multiplex power divider using an air lens suitable for the terahertz frequency band. Background technique [0002] Terahertz (THz) wave is an electromagnetic wave between microwave and infrared (frequency 0.1THz-10THz), which is the "gap area" of the electromagnetic spectrum that has not been fully developed by humans. As a new and rapidly developing technology, terahertz technology is widely used in security inspection and anti-terrorism, object imaging, non-destructive testing, radio astronomy, electronic countermeasures, broadband mobile communication, THz radar and satellite space communication. The THz solid-state frequency source with high efficiency, small size, high power and stable performance is the core component of the miniaturized THz system. Therefore, the research on the miniaturized high-power THz solid-state frequency source has become an important link in the development and a...

Claims

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Application Information

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IPC IPC(8): H01P5/12
Inventor 宋开军陈福龙张樊朱宇樊茂宇樊勇
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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