Packaging and Integration of a Dual-Polarized MIMO Antenna with Pattern Diversity for Dual-Camera Wireless Capsule Endoscopy

and achieves inter-element isolation exceeding 23 dB, envelope correlation coefficients below 0.03, and diversity gain above 9.9 dB. Experimental validation in tissue-mimicking phantoms demonstrates a measured realized gain of -33.7 dBi per element, robust impedance stability across gastrointestinal tissues, and a link margin exceeding 20 dB. Specific absorption rate analysis confirms compliance with IEEE safety limits at power levels well above those used in practical capsule endoscopy systems. The proposed camera-aware antenna integration provides a compact and reliable solution for next-generation dual-camera capsule endoscopy, supporting robust in-body wireless telemetry under unpredictable orientation and propagation conditions.