Terahertz end-fire array linear array antenna based on dipole antenna unit

Abstract

The invention belongs to the field of radio frequency circuit design, and particularly relates to a terahertz end-fire array linear array antenna based on a half-wave dipole antenna unit. According tothe end-fire array linear array antenna, N half-wave dipole antenna units (N is greater than or equal to 1) which have N array units and are suitable for a planar process are utilized, and the N*end-fire array linear array antenna suitable for the planar process is constructed by designing the phase difference ([delta]phi=k.pi) of the currents of the adjacent dipole antenna units and the electrical length spacing of the adjacent units, so that the antenna gain and the half-power width of a terahertz transmitter system are improved, and the Terahertz end-fire array linear array antenna is applied to a terahertz transmitter array system with high output power requirements. In addition, in order to enhance the gain of the terahertz end-fire array linear array antenna, M (M is greater than orequal to 1) half-wave dipole antennas can be inserted between the dipole units of which the adjacent half-wavelength electrical lengths are integral multiples.

Description

technical field [0001] The invention belongs to the field of radio frequency circuit design, in particular to a terahertz end-fire linear array antenna based on a half-wave dipole antenna unit. Background technique [0002] For the terahertz transmitter system, the difficulty and focus of research is how to increase the output power of the transmitter. In order to increase the output power, the commonly used transmitter array systems include transmitter phased arrays, transmitter space power combining linear arrays and transmitter space power combining planar arrays. Space power synthesis linear and planar arrays are generally realized by the method of uniformly changing the phase to excite the antenna array, and the structure of the transmitter is relatively simple; while the phased array generally uses the phase modulator in the transmitter to realize the radio frequency signal of any phase, so as to realize The spatial angle control of the beam, the transmitter structure...

AI Technical Summary

Problems solved by technology

Space power synthesis linear and planar arrays are generally realized by the method of uniformly changing the phase to excite the antenna array, and the structure of the transmitter is relatively simple; while the phased array generally uses the phase modulator in the transmitter to realize the radio frequency signal of any phase, so as to realize Space angle control of the beam, the transmitter structure is relatively complex

[0003] The existing terahertz transmitter chip system usually uses a side-firing array antenna array to increase the antenna gain, thereby increasing the equivalent isotropic radiated power EIRP of the transmitter, but the output power is still limited; by designing an off-chip silicon-based lens and a dielectric lens, Focusing on terahertz waves can further increase the equivalent isotropic radiated power EIRP, but the output power and beam width of the transmitter chip still cannot meet the high output power requirements for in-depth promotion in consumer electronics and commercial markets.

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