# Low Cost AIP Design in 5G Flexible Antenna Phase Array System Application  
[PERSON]  
1 Shenzhen Jaguar Wave Technology Co. Ltd., Shenzhen 518103, China;  
[PERSON]SS] (W-S.T. ); [EMAIL_ADDRESS] (C.-K.L. ); [EMAIL_ADDRESS] (P-Z.R. ); [PERSON]SS] (W-M.C.) 1 Shenzhen Jaguar Wave Technology Co. Ltd., Shenzhen 518103, China;  
[PERSON]SS] (W-S.T. ); [EMAIL_ADDRESS] (C.-K.L. ); [EMAIL_ADDRESS] (P-Z.R. ); [PERSON]SS] (W-M.C.) 2 Department of Electrical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan;  
[EMAIL_ADDRESS]  
3 Department of Information Systems and Computer Science, Ateneo de Manila University, Quezon City 1108, Philippines; [EMAIL_ADDRESS]  
4 Department of Electronic Engineering, Chung Yuan Christian University, Taoyuan City 32023, Taiwan  
* Correspondence: [EMAIL_ADDRESS] (W-.Y.C. ); [EMAIL_ADDRESS] (C.-A.C.); [EMAIL_ADDRESS] (S.-L.C.) November 5, 20  
Similar research on improving the 5G technology network in a different area is conducted by [PERSON] et al. They improved the concept of the 5G technology through the use of the invisible Antenna-on-Display (AoD) that has been successful in the millimeter-wave for the cellular network. The invisible concept was designed and fabricated in a \(1\times 8\) optically invisible array that exhibits a 66.6 dBi boresight gain that operate at 28 GHz, which is still capable of maintaining 88% of the optical transparency. On the other side, [PERSON] et al. designed a quad-port wide-band multiple-input-multiple-output (MIMO) that integrated the wide Axial-ratio concept. This was successfully designed in a FR-4 dielectric substrate with size \(45\times 45\times 1.6\) mm\({}^{3}\). Moreover, the design of the proposed MIMO concept showed a 3-dB ARBW of 52% (3.8-6.5 GHz) and an impedance bandwidth (S11 \(\leq-10\) dB) of 144% (2.2-13.5 GHz) [7; 8]. [PERSON] et al. proposed an antenna array with a planar dual-polarized microstrip 1-D-Beamforming for the 24 GHz band. Simulation results showed that it could operate in a frequency of over 500 MHz. Similar work proposed a power-efficient multiband planar USB dongle antenna for a wireless sensors network. A USB dongle antenna was designed to work with three frequencies bands namely, 2.30-2.69 GHz, 3.40-3.70 GHz, and 5.15-5.85 GHz. At the end of the research, the efficiency of power consumption in the looping process has significantly improved [9; 10; 11]. The spread of virus and influenza in recent years required the monitoring of physiological signals without contact to the subjects, which is of the utmost priority. The wireless body sensor networks (WBSNs) [12; 13] overcome the difficulties of high risk infecting. Furthermore, [PERSON] et al. provided a low power [14] and efficient compression algorithm [15] to increase the effectiveness of communication data without any loss. Body signals with noise are easy to confuse the diagnosis and misjudge the symptom is another challenge. A filter with a reconfigurable clock [16] was designed for WBSNs with better noise filtering therefore acquiring smooth signals. With the advancement of both medical imaging and compressors, [PERSON] et al. [17; 18] used fuzzy decision and resolution to improve the rate of image compression. Moreover, a central control unit and cost-efficient WBSNs systems were required in a micro control unit implementation [19]. Moreover, the modularized device brings a lot of convenience on combining the system and can simplify the design of many other functional devices, like the wireless transmission of medical data by a wearable device [20]. These previous works contributed to the efficiency of the designs and real-time data implementations to wireless communication devices. This paper expands and continues previous studies and proposes an improvement in the design of the AIP that is a low-cost 28 GHz AIP for the 5G communication system that is based on \(2\times 2\) beamformer core chips. The next sections present the phased-array architecture of the unit cells, the analysis system for the elements array, and circuit blocks.