▎ 摘　　要

NOVELTY - Cooperative combined antenna working comprises patch antenna connected with feeding point (5) of logarithm periodic antenna through lead. The patch antenna applies excitation to the periodic antenna by side feed. An antenna main body is provided with fan-shaped central feeding body (8). Two sides of the central feeding body are provided with multiple antenna arrays (9). The antenna array is at intervals along edge of the central feed body. The antenna elements of the two sides are staggered along radial direction. The arc length of inner edge of antenna oscillator (3) on one side is equal to arc length on outer edge of another antenna oscillators adjacent to the other side along the radial direction, where the arc length at the inner edge is the same as the arc length of the outer edge. USE - The antenna working is useful in terahertz waveband, medical research, explosive detection, 6 G communication, security detection and non-destructive detection fields. ADVANTAGE - The logarithm period antenna is used as the source and drain antenna of the transistor detector, and the rectangular patch antenna is added corresponding to the detection frequency at the gate, so that the terahertz signal of the target frequency band is introduced into the channel, and enhances the detection performance. The antenna can work in multiple frequency bands, and widens the detection spectrum of the detector. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene-based antenna enhancement terahertz detector. DESCRIPTION OF DRAWING(S) - The drawing shows a structural diagram of the logarithmic period antenna part of the cooperative combined antenna working in terahertz waveband. Fan-shaped angle (1) Opening angle alpha (2) Antenna oscillator (3) Metal test electrode (4) Feeding point (5) Outer radius (6) Inner radius (7) Central feeding body (8) Antenna arrays (9)