Table 3. Variation of dielectric constant of coal gangue samples with frequency.

0.1

7.3349

6.6193

5.5459

26.4772

23.6148

24.1515

0.3

5.7248

4.770667

4.949567

23.13773

20.81203

21.22947

0.5

4.97342

4.1147

4.1147

19.82212

18.14046

18.39092

0.7

4.216929

3.501329

3.654671

16.96994

15.81987

15.81987

0.9

3.498489

3.061178

3.180444

14.6698

13.57652

13.65603

1.1

3.171409

2.602182

2.748555

12.75069

11.70982

11.83993

1.3

2.834877

2.298177

2.422031

11.42208

10.41748

10.27987

1.5

2.5046

2.063313

2.194507

10.0184

9.243167

9.135827

1.7

2.294129

1.862665

1.936329

9.029188

8.250447

8.155735

1.9

2.080889

1.694842

1.798416

8.078747

7.476137

7.297237

2.1

1.916786

1.550467

1.627138

7.386014

6.840795

6.678933

2.3

1.781222

1.4312

1.516761

6.891539

6.245943

6.098157

2.5

1.638724

1.331016

1.39542

6.40462

5.810672

5.610304

2.7

1.517337

1.258926

1.318559

5.930204

5.380252

5.194726

2.9

1.437369

1.184441

1.227624

5.521224

5.0092

4.836469

3.1

1.361948

1.125339

1.148423

5.165016

4.686026

4.524439

3.3

1.279406

1.067979

1.078821

4.851985

4.402024

4.25023

3.5

1.206297

1.006951

1.017174

4.574729

4.15048

4.00736

3.7

1.160432

0.962192

0.981532

4.327446

3.92613

3.790746

3.9

1.119272

0.922023

0.931197

4.105526

3.72479

3.596349