hi all,
anyone know how to increase the effficiency for WLAN and Bluetooth band for one antenna?
i already design the PIFA antenna to get dual band,however the efficiency for high band is too low.
freq used : 2.4-2.5GHz
5.15GHz, 5.35GHz and 5.85GHz
the device also have metal frame that material is magnesium. i think
that material cause my antenna for 5GHz become worse.
the problem is what ever i have done the efficiency for 5GHz (WLAN) is too low
so i hope anyone can help me give some idea or advice how to increase the efficiency performance for the antenna
rgds,
kyg