A compact flexible dual band coplanar waveguide fed antenna for 5 G applications

Abstract

A novel, compact, and flexible dual-band ring-shaped radiating antenna with coplanar waveguide (CPW) feed is proposed for 5G applications. The radiating elements are printed on top of substrate with dimension 29 × 21.3 mm² and a compact radiating structure is obtained by setting the width of main radiating element and signal strip that are same. To enhance the radiation characteristics of lower and upper band, two rectangular stubs are used. The flexibility of antenna is examined by a convex E-plane bending with radius of 50 mm. The simulated and fabricated antenna have good matching results (bend antenna and without bend antenna). The measured result produces a 10-dB impedan2ce bandwidth of 1.35 GHz (3.17–4.52 GHz) for lower band and a 1.59 GHz (5.71–7.30 GHz) for upper band for covering all 5G bands in lower and upper 3.5 GHz, lower and upper 6 GHz.