In this work an elliptical patch type antenna is designed for biomedical application which is simulated on software. A vital part of any biomedical antenna module are the antennas, which need to be designed with high radiation directivity and mechanical flexibility in mind, as these are frequent criteria for bio-radar applications. The design of a proposed antenna on a flexible 1.6 mm thick liquid crystal polymer (LCP) substrate with a 3.35 permittivity is presented in this study. The intended antenna array can be utilized in a non-contact way to monitor vital signs when combined with a 24 GHz bio-radar. Its dimension 35 * 50 mm2 and has a measured gain of 3.1 dB and the return loss is − 32 dB at 24 GHz. The human body model, which has a calculated SAR value of 0.934 kg/watt per gram, is used to evaluate antennas. Applications in biomedicine are possible for the suggested antenna. It is a rather small device.