A compact DNB-MIMO antenna design andanalysis for IoT application was proposed. The antennaradiator consists of 2 L-shaaped quarter-wavelengths andinverted 7-shaped radiators with a microstrip feed line,and partial ground plane with a size of 32 × 15 mm~2.This antenna achieves a higher quality factor (Q > 10)and narrow band impedance matching at the centralfrequencies of 1.8 GHz and 2.4 GHz bands with approximately8.2 and 6.2 bandwidth respectively. The suitabilityof the designed antenna for IoT applications isverified through the hosting device model. The proposed4-port MIMO antenna has an overall size of 60 × 60 ×1.6 mm~3, and it is printed on an FR4 substrate. The diversityadd comma such as ECC, DG, TARC, MEG, andCCL, are calculated and there values are<0.19, 9.85 dB,< -25 dB, < -6 dB, < 0.19 bits/Hz/s, respectively, withinthe limits. The proposed antenna is integrated with theZigbee module (lowercase) to analyze the performancefor IoT applications at 2.4 GHz.
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