A fully-integrated Multi-Band PA using 0.25 μm SiGe:C process with an output power of above 25 dBm is presented. The behaviour of the amplifier has been optimized for multi-band operation covering, 2.4 GHz, 3.6 GHz and 5.4 GHz (UWB-WiMAX) frequency bands for higher 1-dB compression point and efficiency. Multi-band operation is achieved using multi-stage topology. Parasitic components of active ...

This paper proposes a monopole antenna with photonic crystal structure as substrate for ultrawide band application with dual band notched characteristics.Improvements in all the main parameters of the antenna were obtained when using a PC.The measured results reveal that the presented dual band-notch monopole antenna offers a very wide bandwidth with two notched bands, covering 3.5/5.5-GHz WiMA...

A planar elliptic broadband antenna with reconfigurable dual stop-bands performance was successfully designed and performed for multi-standard wireless communication systems. The proposed antenna consists of a broadband micro-strip fed printed monopole operating in the frequency range 0.75– 6GHz. The notch-band characteristic was obtained by printing two Open Loop Resonators (OLRs) on the front...

Worldwide Interoperability for M i c r o w a v e Access, better known as WiMAX, is a standardsbased wireless technology for providing highspeed, last-mile broadband connectivity to homes and businesses as well as for mobile wireless networks. With the fixed version of WiMAX, based on IEEE 802.16-2004, transmissions can potentially carry data traffic over more than 30 miles (~50 km) in rural are...

4G will not facilitate the design of cell phones. Compared to today's 3G, future 4G multistandard, multi-band cellular phones have to cover an increasing number of wireless standards. These standards include GSM, CDMA, WCDMA, 3GPP LTE/4G, WIMAX and even MIMO WIMAX AND MIMO LTE/4G at up to 25 frequency bands, and includes connectivity systems like WLAN and Bluetooth, and support navigation syste...