Frequency Selective Surfaces (FSSs) are crucial for controlling the transmission and reflection of specific electromagnetic wave frequencies. FSSs play a critical role in various technologies, including wireless communication and radar systems, by targeting specific regions of the electromagnetic spectrum to improve system performance. Integrating FSS on a radome can transmit the wave within the passband while scattering the wave outside the passband. Radomes provide protection for antenna systems from environmental conditions while permitting the transmission of electromagnetic waves. The objective of this study is design, fabrication, and measurement of a 5 GHz bandpass double-sided FSS intended for integration within a radome structure. In the study, aperture, and patch-type FSS structures that provide bandpass filter characteristics were used. The design comprises two distinct shapes, with the front surface patch and the rear shape resulting from the excavation of the copper plate. FR-4 (εr = 4.4) and t = 1.66 mm) is used as substrate. For simulations, CST Microwave Studio was employed. After unit cell design and analysis in CST, optimization and sensitivity analysis were performed to meet requirements. Then FSS was fabricated, and transmission loss measurement was performed. According to simulation results -33 dB S11 and -0.58 dB S21was obtained for optimum aperture and patch sizes. The simulation and measurement results of transmission loss are very close to each other. Therefore, the developed FSS is recommended for use in wireless communication technologies within the 5GHz band.