Device and method for measuring ceramic contractibility rate and dielectric constant systematically

The invention relates to a device for measuring ceramic contractibility rate and dielectric constant systematically. The device comprises a low-temperature co-fired ceramic (LTCC) base plate (1), and a first resonant circuit (2) and a second resonant circuit (3) which are arranged on the LTCC base plate (1), have similar structural types and are arranged in parallel, wherein a first rectangle micro-strip ring resonator (4)is arranged in the middle of the first resonant circuit (2), first L-shaped input-put micro-strip lines (5) are arranged at two sides of the first resonant circuit (2), a first coupling gap (6) is left between the first rectangle micro-strip ring resonator (4) and the adjacent end of the first L-shaped input-put micro-strip lines (5), a second rectangle micro-strip ring resonator (7)is arranged in the middle of the second resonant circuit (3), second L-shaped input-put micro-strip lines (8) are arranged at two sides thereof of the second resonant circuit (3), a second coupling gap (9) is left between the second rectangle micro-strip ring resonator (7) and the adjacent end of the second L-shaped input-put micro-strip lines (8), and the other end of each second L-shaped input-put micro-strip line (8) is an input and output port of the second resonant circuit (3).