Based on this product's specifications, here are some alternatives and similar models
Omni-directional antenna DeLOCK 89494
Summary description:
The DeLOCK 89494 is an omni-directional antenna with a gain of 2.5 dBi, operating in the frequency bands of 0.824 - 0.96 GHz and 1.92 - 2.17 GHz. It features a 50 Ω impedance and SMA male connector, making it compatible with various devices. Its compact dimensions (16.2 mm width, 126 mm height, and 8.8 mm depth) allow for easy installation. Ideal for enhancing signal reception in diverse applications.