need AP that will inherit WPA/WPA2 key from central WiFi router

Hi there,
I'm looking for an access point or range extender that will use the same wireless security of his "master" wifi router without additional configuration.
Background of this installation is the need to change the WiFi security every one or two weeks. The configuration should be made only at one point (central WiFi router). Is there any equipment that might fit for this demand?

Thanks!