This step-by-step guide describes how you can add a second wireless router to your existing home network and extend the range of the Wi-Fi signal. The router will work as a Wireless Access Point.
Official Belkin Support Site | Configuring your wireless Belkin router as an access point
ZyXEL 3-in-1 Wireless N Pocket Travel Router, Access Point, and Ethernet Client (MWR102)
AVP AVP-02R 3G 300Mbps 11N Wireless-N 4-Port Router/Access Point w/2dBi Omni-directional Antennas (White)
TP-Link N150 Wireless Nano Travel Router with Range Extender/Access Point/Client/Bridge Modes (TL-WR702N) ❤ TP-Link
Rental Mobile Wifi Mifi Pocket Wifi in Japan, Portable Wifi Mifi router access point:: Global Advanced Communications
Wireless N 150Mbps Mini USB Powered Nano Router & Access Point
Telpo TPX820 4G Wireless Router WIFI Access Point
How to set up the Raspberry Pi as a WiFi access point and router with hostapd.
Setting up a Raspberry Pi as a WiFi access point