A novel tunable matching network for dynamic load modulation of high power amplifiers

Li, Yue; Maehata, Takashi; Totani, K.; Tango, H.; Hashinaga, T.; Asaina, Takumi

doi:10.23919/eumc.2012.6459246

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…However, on the other hand, the high power consumptions at the front-end devices due to these services become a serious problem for long battery life. Since, the assembly of RF Power Amplifier (PA) and antenna is the most power-consuming block in wireless transceivers, reducing the power consumption of the combined device and its matching circuits is one of the most attractive research areas [2].…”

Section: Introductionmentioning

confidence: 99%

Co-design of an antenna-power amplifier RF front-end block without matching network for 2.4 GHz WiFi application

Pal

Zhou

Mehta

et al. 2017

2017 IEEE Radio and Wireless Symposium (RWS)

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A co-design of an antenna-Power Amplifier (PA) block in RF front-end module is presented. This technique enables the direct integration of PA and antenna without any matching circuits and helps to reduce the loss, power consumption and overall size of the RF front-end modules without affecting the efficiency of the PA. For first two harmonics the impedance matching between the PA and antenna is achieved by utilizing a capacitively coupled feeding mechanism which controls the input impedance of the antenna. By using this integration technique a Class-B PA operating at 2.4 GHz provides a maximum efficiency of 62% which is similar to the performance with the additional matching circuit. Also the design methodology of the antenna is reported. The antenna provides an axial beam with a maximum gain of 6.5 dBi and has a radiation efficiency of 85%.

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Section: Introductionmentioning

confidence: 99%