This article reports a design and analysis of 8\(\times\)8 dilated banyan network using 1\(\times\)2 and 2\(\times\)1 gated Mach−Zehnder interferometric (GMZI) crossbar photonic switches for crosstalk reduction. The GMZI crossbar switches are designed using proton exchanged channel waveguides with single-crystal lithium niobate on insulator. The features of the designed GMZI switches are its broadband operation, low insertion loss, and low crosstalk. These are verified by the numerical experiments using full-vectorial 2D finite-difference beam propagation method and using various figure-of-merits. The OFF-state feature in the proposed 1\(\times\)2 and 2\(\times\)1 GMZI switches provides a crosstalk reduction in the network since the idle switches are configured to be in OFF-state to avoid the crosstalk propagation. We performed a comparative study on 8\(\times\)8 dilated banyan network based on 2\(\times\)2 MZI switches and the proposed GMZI switches. The fully loaded 8\(\times\)8 dilated banyan network with the proposed GMZI switches leads to crosstalk reduction of more than 25 dB, which provide broadband operation over a wavelength range of 1530–1570 nm and 50% reduced footprint against the 2\(\times\)2 MZI-based implementation.