Automatic antenna tuning for RF transmitter IC applying high Q antenna

Zolomy, A.; Mernyei, F.; Erdelyi, J.; Pardoen, M.D.; Tóth, György

doi:10.1109/rfic.2004.1320666

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…Research into automatic impedance matching and antenna tuning has gone through some significant stages, from traditional HF/VHF applications employing electro‐mechanical tuning and discrete components [5–8] to the latest research aimed at fourth generation wireless and mobile applications employing integrated devices at UHF and GHz frequencies [3, 4, 9–20].…”

Section: Automatic Antenna Tuning Systemmentioning

confidence: 99%

“…A solution to the matching problem is to incorporate a tunable impedance matching network between the transmitter/receiver and the antenna, which is capable of adaptively adjusting to changes in antenna impedance, operating frequency or environment for optimum performance [5–23]. This has long been a widespread practice in the MF, HF and VHF ranges, where automatic antenna tuners with discrete‐component LC networks are used in order to achieve the relatively large inductances and capacitances required at lower frequencies [5–8].…”

Section: Introductionmentioning

confidence: 99%

“…This has long been a widespread practice in the MF, HF and VHF ranges, where automatic antenna tuners with discrete‐component LC networks are used in order to achieve the relatively large inductances and capacitances required at lower frequencies [5–8]. Recently, integrated on‐chip matching networks have been investigated for UHF and microwave transceiver antennas, since it is feasible to produce the smaller components required in integrated form [3, 4, 10–20].…”

Section: Introductionmentioning

confidence: 99%

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Automatic impedance matching and antenna tuning using quantum genetic algorithms for wireless and mobile communications

Tan

Sun

Lauder

2013

IET Microwaves, Antennas & Propagation

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In this study an adaptive impedance tuning scheme based on the quantum genetic algorithm (QGA) is proposed. A low‐pass passive LC impedance matching network is used and tuned by a QGA controller. The tuning algorithm iterates until the matching point is reached. Simulations and results of the QGA tuning method are presented for 1.8 and 2.4 GHz of mobile and wireless communications with different antenna impedances. Comparison of the proposed QGA tuning method with conventional genetic algorithm‐based tuning method is also given, which shows that the QGA tuning algorithm is much faster. The proposed QGA method can also be used for tuning a radiofrequency band by tuning the impedance matching network to the band centre frequency. Simulation results for the universal mobile telecommunications system band of 60 MHz width and Industrial, Scientific and Medical band of 200 MHz width all show good performances.

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Section: Automatic Antenna Tuning Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Automatic impedance matching and antenna tuning using quantum genetic algorithms for wireless and mobile communications

Tan

Sun

Lauder

2013

IET Microwaves, Antennas & Propagation

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“…As a second condition, the same network must be capable in tuning a load reactance to a matched reactance , at a maximum frequency . Rewriting (4) gives the series capacitor as…”

Section: B Capacitance Tuning Rangementioning

confidence: 99%

“…As a secondary solution, adaptive antenna matching techniques [4]- [7] can be applied to maintain link quality. This method is more attractive because it preserves maximum field strength, power amplifier linearity, receiver sensitivity, and power efficiency of a phone simultaneously.…”

Section: Introductionmentioning

confidence: 99%

A GSM/EDGE/WCDMA Adaptive Series-LC Matching Network Using RF-MEMS Switches

Bezooijen

Jongh

Chanlo

et al. 2008

IEEE J. Solid-State Circuits

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Automated Reconfigurable Antenna Impedance for Optimum Power Transfer

Alibakhshikenari

Virdee

See

et al. 2019

2019 IEEE Asia-Pacific Microwave Conference (APMC)

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This paper presents an approach to implement an automatically tuning antenna for optimising power transfer suitable for software defined radio (SDR). Automatic tuning is accomplished using a closed loop impedance tuning network comprising of an impedance sensor and control unit. The sensor provides the control unit with data on the transmit or receive power, and the algorithm is used to impedance of a T-network of LC components to optimize the antenna impedance to maximise power transmission or reception. The effectiveness of the proposed tuning algorithm in relation to impedance matching and convergence on the optimum matching network goal is shown to be superior compared with the conventional tuning algorithm.

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Automatic antenna tuning for RF transmitter IC applying high Q antenna

Cited by 7 publications

References 1 publication

Automatic impedance matching and antenna tuning using quantum genetic algorithms for wireless and mobile communications

Automatic impedance matching and antenna tuning using quantum genetic algorithms for wireless and mobile communications

A GSM/EDGE/WCDMA Adaptive Series-LC Matching Network Using RF-MEMS Switches

Automated Reconfigurable Antenna Impedance for Optimum Power Transfer

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