Bandpass filters are used to achieve frequency selectivity on the spectrum of input signal due to the stability of finite impulse response (FIR) filters which are used in many applications. Control logic circuit is used to ease the effective selection of particular FIR filters having different bandwidth in the range of 24–47 GHz. The choice of the FIR filter is decided by the control logic circuit in response with the required frequency selectivity for auto-amendment of the bandwidth. The FIR filter is coupled with control logic ensures seamless adaptability of the bandwidth to meet varying 5G application requirements. This approach is used to compose multiple bandwidths into a single efficient system. The SystemVue software is utilized to validate the proposed auto-amending bandwidth bandpass filters system. The results obtained from these simulations using SystemVue illustrate the adaptability and effectiveness of the FIR filter and the control logic circuit in smoothly adjusting the signal range of 24–47 GHz. The results confirmed that the FIR filters are stable and versatile for 5G FR2 use cases. This highlights the practicality of the approach by demonstrating its potential to integrate multiple signal needs into an efficient system for 5G applications. This represents a crucial step toward optimizing resources and adapting to the evolving landscape of various 5G technologies.