Wideband Dipole Array With Balanced Wideband Impedance Transformer (BWIT)

Within the context of modern digital phased array (DPA) radios, differential Radio Frequency (RF) front-ends provide much greater immunity to noise and distortion by suppressing second order harmonics. Recent advancements in RF offer high dynamic range, linearity, low transceiver chain. However, a major roadblock fully systems is presence common-mode resonances. In this article, we present novel wideband feed for dipole arrays that overcomes bottleneck. Our developed L-S band (viz. 1.05 GHz 3.2 GHz) with emphasis on dual-linear polarization resonance-free scanning angles. The novelty article Balanced Wideband Impedance Transformer (BWIT) mitigates currents across entire while Array simulations are verified measurements an $8\times 8$ prototype volume 384mmx384mmx57 mm. achieves 3:1 impedance bandwidth VSWR <; 3 cases $\theta = 0^{\circ }$ (Broadside), 45° (D-plane), 60° (E-plane) 2.37:1 case (H-plane). Measured gain near-theoretical values operating band.