Amazon.com: Highfine 2 x 2.4GHz 6dBi Indoor Omni-Directional WiFi Antenna 802.11n/b/g RP-SMA Female Connector + 2 x 20cm/8" U.FL/IPEX to RP-SMA Pigtail Antenna WiFi Cable : Electronics
Amazon.com: Tupavco DB541 WiFi Antenna Dual Band - (2.4GHz) and (5GHz/5.8GHz) 9DBI - Medium Range Directional (not-Yagi) Wireless LAN Network Antenna, White : Electronics
Directional WiFi - Wireless Antennas | RadioLabs
What to consider when selecting a Wi-Fi antenna
▷ The four types of directional WiFi antennas and the maximum range of WiFi signal. -