Based on this product's specifications, here are some alternatives and similar models
Omni-directional antenna QuWireless AO5G4-G SMA 4.5 dBi
Summary description:
The QuWireless AO5G4-G is an omni-directional antenna with a maximum gain of 4.5 dBi. It operates across multiple frequency bands: 0.617-0.96 GHz, 1.7-2.7 GHz, 3.3-4.7 GHz, and 5.2-6 GHz. The antenna features a vertical polarization and SMA connector type, making it suitable for various applications. With dimensions of 160 mm width, 160 mm depth, and 240 mm height, it is designed for efficient signal reception and transmission.