A simulation-based design method to transfer surface mount RF system to flip-chip die implementation

Zheng, Liqiang; Rodgers, Kenneth; Mathewson, A.; O’Flynn, Brendan; Hayes, Michael; O’Mathuna, Cian

doi:10.1109/estc.2010.5642911

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Measurements Verification1

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2011

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“…9 is the Tyndall Zigbee mote with QFN packaging [9], right of Fig. 9 is the Tyndall ADF7020 mote with flip chip packaging of the bare die [10]. The Zigbee mote was working at 2.4GHz, while the ADF7020 was at 433MHz.…”

Section: Measurements Verificationmentioning

confidence: 99%

A Passive Circuit Based RF Optimization Methodology for Wireless Sensor Network Nodes

Zheng

Mathewson

O’Flynn

et al. 2011

AMR

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Return loss of wireless sensor network (WSN) node indicates the impedance matching between signal ports of the RF chip and the antenna, and thus shows the transmission efficiency in the signal path. All circuit components, including capacitors, inductors, PCB tracks, packaging parasitic and RF ports were modeled as equivalent passives, to achieve accurate simulation result of return loss of the WSN node. An optimization methodology of return loss was proposed based on the parameter sweep of the equivalent passive network simulation. With the help of the methodology, some critical components’ values were changed to obtain optimized RF performance for the wireless node. Measurements matched the analysis and simulation well and showed great improvement.

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Section: Measurements Verificationmentioning

confidence: 99%