Yes, for the most space constrains design you can. However you should be aware of the disadvantages. A chip antenna on 868/915 MHz only medium performance and as the as it is short, it is also more easily detuned compared to longer antenna. That means plastic housing close to the antenna, metal close to antenna etc. will detune the antenna and hence degrade the performance. The antenna can be returned to the housing, but this require RF expertise + network analyzer.
Last Update: August 8, 2017