InP Ultra-Broadband Components

We develop ultra-wideband traveling-wave amplifiers (TWA) and wideband transimpedance amplifiers (TIA) with excellent characteristics. They are realized using our transfer substrate InP-DHBT process.

[Translate to English:] Chipfoto eines TIA und TWA — Monolithically integrated TIA and TWA for high output powers

[Translate to English:] Chipfoto eines ultra-breitbandigen Verstärker TWAs — Ultra-wideband amplifier TWA with 175 GHz bandwidth

Travelling wave MMIC amplifier with DC - 175 GHz bandwidth

Simulated and measured results for the DC - 175 GHz

Our TWA achieve high output power Psat > 12 dBm, high efficiency > 10% with a low noise figure NF < 8 dB in a bandwidth > 150 GHz. The designed TIA achieve transimpedance > 50 dBOhm with high output power.

As an example, the figure shows a DC-175 GHz TWA with a gain of 12 dB and uniform linear phase and output power, with P1dB > 8 dBm at 150 GHz and a PAE of 6%.

Cascade of a TIA and a TWA operating up to 110 GHz

Simulated and measured results for the TIA TWA cascade with 1.75 dBGHz gain bandwidth product

Our InP DHBT transimpedance amplifiers achieve very low noise figures with simultaneously high output power and wide bandwidth.

Simulated and measured results for the MMIC switch

The electronic switches in InP DHBT technology show excellent isolation between ports, very good linearity and low losses. Using InP-TS-DHBT technology, single-pole double-throw (SPDT) MMIC switches with a bandwidth of > 235 GHz could be achieved with cut-off frequencies up to 300 GHz. The linearity with 1dB power referenced to the input is P_IN(1dB) > 16 dBm and the isolation is > 40 dB.

The goal of the TERAWAY project is to build a comprehensive (fronthaul and backhaul) 5G infrastructure for THz data transmission to and from drones and balloons. The unmanned aerial vehicles will provide 5G or 6G connectivity for large and sporting events where local data traffic is very high.

Selected Publications

A High-Isolation and Highly Linear Super-Wideband SPDT Switch in InP DHBT Technology

IEEE MTT-S Int. Microw. Symp. Dig., Los Angeles, USA, Aug. 4-6, Virtual Event, ISBN 978-1-7281-6815-9, pp. 1125-1128 (2020).

Design and modeling of an ultra-wideband low-noise distributed amplifier in InP DHBT technology

Int. J. Microwave Wireless Technolog., vol. 11, no. 7, pp. 635-644 (2019).

A Hetero-Integrated W-Band Transmitter Module in InP-on-BiCMOS Technology

13th European Microwave Integrated Circuits Conference (EuMIC 2018), Madrid, Spain, Sep. 24-25, pp. 97-100 (2018).

An Ultra-broadband Low-Noise Distributed Amplifier in InP DHBT Technology

48th European Microwave Conference (EuMC 2018), Madrid, Spain, Sep. 25-27, pp. 1209-1212 (2018).

A Highly Efficient Ultrawideband Traveling-Wave Amplifier in InP DHBT Technology

IEEE Microwave Wireless Compon. Lett., vol. 28, no. 11, pp. 1029-1031 (2018).

InP Ultra-Broadband Components

Wideband MMIC amplifiers (TWA)

Wideband transimpedance amplifiers (TIA)

Ultra broadband switches

Current projects

TERAWAY - terahertz technology for ultra-broadband and ultra-wideband operation of backhaul and fronthaul links in systems with SDN management of network and radio resources