A 140 GHz to 160 GHz active impedance tuner for in-situ noise characterization in BiCMOS 55 nm

Bouvot, Simon; Goncalves, Joao Carlos Azevedo; Bossuet, Alice; Quémerais, Thomas; Lepilliet, S.; Ducournau, Guillaume; Danneville, F.; Gloria, D.

doi:10.1109/rfit.2017.8048233

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…Impedance tuners are devices intended for varying the impedance in RF and microwave circuits. They are used for impedance matching [1][2][3][4], in source-and load-pull characterisation of power devices [5,6] and determination of the noise parameters of lownoise devices [7][8][9]. The tuners are also applicable in multistate six-port measurement systems [10,11], in which they diversify the impedance of the test port's load.…”

Section: Introductionmentioning

confidence: 99%

Wideband two‐port with programmable scattering parameters

Odrobina

Staszek

2019

IET Microwaves, Antennas & Propagation

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A two‐port network featuring programmable reflection and transmission coefficients is proposed. The network exhibits a simple structure and can operate over a wide frequency range. A detailed description of the presented system is given, including the theoretical analysis and derivation of design equations. To assess the performance of the manufactured system, the tuning range of reflection and transmission coefficients was measured in the frequency range from 0.5 to 2.0 GHz. The obtained results show good agreement with the theoretical results over the entire two‐octave operational bandwidth. Moreover, the potential application of the developed two‐port for the generation of various reflection coefficients in calibration of a multiport reflectometer is demonstrated.

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Section: Introductionmentioning

confidence: 99%

Wideband two‐port with programmable scattering parameters

Odrobina

Staszek

2019

IET Microwaves, Antennas & Propagation

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“…To solve this problem, the use of an impedance tuner is one of the representative methods of matching the antenna impedance. Impedance tuners are widely used to match impedances, such as antennas [ 2 ], power amplifier (PA) load-pull [ 3 ], and noise characterization [ 4 ], and so on. Conventional impedance tuners comprise mainly three different techniques, namely the single-stub [ 5 ], double-stub [ 6 ], and optimization methods [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Planar Inverted-F Antenna (PIFA) Using Microfluidic Impedance Tuner

Lee

Lim

2018

Sensors

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This paper proposes a microfluidic impedance tuner that is applied to a planar inverted-F antenna (PIFA). The proposed microfluidic impedance tuner is designed while using a simple double-stub and the impedance is changed by tuning the stub length. In this work, the stub length can be tuned by injecting a liquid metal alloy to the microfluidic channels. Initially, the PIFA operates at 900 MHz with impedance matching of 50 Ω. The impedance is mismatched when a hand is placed close to the antenna. The mismatched impedance is matched to 50 Ω by injecting the liquid metal alloy. The antenna is fabricated on the FR-4 substrate, and the impedance tuner is fabricated on polydimethylsiloxane (PDMS). In order to inject the liquid metal alloy, a piezoelectric micropump and microprocessor are used in the measurement. At 900 MHz, the return loss is successfully tuned from 4.69 dB to 18.4 dB when a hand is placed 1 mm above the antenna.

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