Old part number FR05-S1-N-0-110 available here.
The Micro Reach Xtend™ Chip Antenna is a very small size and low cost antenna that combines reduced clearance area required within the customer PCB with its high performance and integration flexibility. This makes it ideal for small consumer electronics devices such as small wireless headsets and highly integrated multifunction mobile handsets. Taking advantage of the space-filling properties, this small monopole antenna is perfect to use within indoor (highly scattered) environment.
Bands: ISM 2.4 GHz band.
Dimensions: 4.1 mm x 2.0 mm x 1.0 mm
Tags: Automotive, Bluetooth, Diversity, ebook, Headsets, IoT (internet of things), ISM, jewelry, Laptop, MIMO, Modules, netbook, phablet, Point of Sales, POS, ReachXTEND, ring, router, Sensors, set top box, Smartwatch, Tablet, usb, Wearables, Wifi, WLAN