In this contribution, an active fully monolithic BPSK modulator with small phase error and small differential insertion loss is presented. The proposed topology consists of a split-loaded amplifier and a symmetrical absorptive SPDT switch. A test vehicle adopting this topology is designed using a 0.18 μm GaAs pseudomorphic HEMT technology. A phase error of 15° and a differential insertion loss lower than 1.8 dB covering the entire 2-18 GHz frequency band has been achieved. A phase error of only ±2.5° around 186.8° over the 4-18 GHz sub-band has been also obtained. Return loss resulted better than 10 dB at both input and output ports. The proposed structure can be exploited as BPSK modulator for ultra-wideband vector modulators.

Polli, G., Palomba, M., Scucchia, L., Colangeli, S., Limiti, E. (2017). BPSK modulator for 2-18 GHz Vector Modulator. In The 16th International Symposium on Microwave and Optical Technology. Seoul : ISMOT.

BPSK modulator for 2-18 GHz Vector Modulator

POLLI, GIORGIO;PALOMBA, MIRKO;SCUCCHIA, LUCIO;COLANGELI, SERGIO;LIMITI, ERNESTO
2017-06-01

Abstract

In this contribution, an active fully monolithic BPSK modulator with small phase error and small differential insertion loss is presented. The proposed topology consists of a split-loaded amplifier and a symmetrical absorptive SPDT switch. A test vehicle adopting this topology is designed using a 0.18 μm GaAs pseudomorphic HEMT technology. A phase error of 15° and a differential insertion loss lower than 1.8 dB covering the entire 2-18 GHz frequency band has been achieved. A phase error of only ±2.5° around 186.8° over the 4-18 GHz sub-band has been also obtained. Return loss resulted better than 10 dB at both input and output ports. The proposed structure can be exploited as BPSK modulator for ultra-wideband vector modulators.
16th International Symposium on Microwave and Optical Technology
Seoul, Korea
2017
16
Rilevanza internazionale
contributo
27-ago-2017
Settore ING-INF/01 - Elettronica
English
BPSK, ultra-wideband, GaAs MMIC, Phase Shifter, vector modulator.
Intervento a convegno
Polli, G., Palomba, M., Scucchia, L., Colangeli, S., Limiti, E. (2017). BPSK modulator for 2-18 GHz Vector Modulator. In The 16th International Symposium on Microwave and Optical Technology. Seoul : ISMOT.
Polli, G; Palomba, M; Scucchia, L; Colangeli, S; Limiti, E
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/185968
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