Smallest GaAs MESFET switch for RF

18 May 2005 Telecoms, Datacoms, Wireless, IoT

A new leadless GaAs MESFET is claimed to be the world's smallest and lowest profile RF single pole dual throw switch. Featuring a frequency range of operation from DC to 3 GHz, Toshiba's TG2217CTB device is a low-profile gallium arsenide (GaAs) metal-semiconductor field effect transistor (MESFET) single pole dual throw (SPDT) switch. It is well-suited for use in multiband/-mode cellular antenna switch modules, Bluetooth modules and wireless LAN (WLAN) applications.

Recently, demand for multiband/-mode antenna switch devices for GSM-based handsets and GPS devices has been increasing, and designers have been looking for smaller, more cost-effective antenna switch solutions. Toshiba says its new RF SPDT is the smallest package currently available for this and also features low insertion loss and high isolation.

The TG2217CTB SPDT switch in leadless 6-pin CSP package measures 1 x 1 x 0,38 mm. Two control positive voltages also act as bias supply. The control voltages are very low and 2,4 V-switching operation is possible. The switch features 0,35 dB insertion loss at 1 GHz (0,40 dB at 2 GHz) and 24 dB isolation at 1 and 2 GHz.

Further reading:

Simplifying system design
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
The FGMC63N tri-band MCU Wi-Fi 6E module from Quectel addresses offers integrated connectivity across 2,4 GHz, 5 GHz, and 6 GHz bands in a compact, highly optimised design.

Read more...

---

Dragino’s connectivity catalogue
Otto Wireless Solutions Telecoms, Datacoms, Wireless, IoT
Where Wi-Fi demands frequent charging and covers tens of meters, and traditional cellular consumes too much power for battery-operated nodes, LoRaWAN threads the needle.

Read more...

---

RF filters explained
RFiber Solutions Telecoms, Datacoms, Wireless, IoT
As RF environments become increasingly crowded, RF filters play a critical role in maintaining signal quality, improving system performance, and ensuring reliable operation.

Read more...

---

Practical design strategies for 5G
RF Design Telecoms, Datacoms, Wireless, IoT
The Cavli CQM211 aims to provide a platform that combines strong 5G connectivity with onboard compute capability, as well as interface flexibility that suits both new designs and rapid migrations from earlier products.

Read more...

---

GigaDevice expands optical communication portfolio
NuVision Electronics Telecoms, Datacoms, Wireless, IoT
GigaDevice has introduced the new GD32E512 and GD32E252 series MCUs specifically designed for optical module applications.

Read more...

---

An industry-first Android 16 smart module solution
RF Design Computer/Embedded Technology Telecoms, Datacoms, Wireless, IoT
The MeiG Smart SLM580 4G Smart Module features native support for Android 16 and covers core frequency bands in major countries and regions worldwide.

Read more...

---

High performance RF signal conditioning
RFiber Solutions Telecoms, Datacoms, Wireless, IoT
The AM3269 from Mercury Systems is a high-performance RF preselector module designed to improve receiver sensitivity and signal integrity in demanding electronic warfare, signals intelligence, test, and communications applications.

Read more...

---

RF filters explained
RFiber Solutions Telecoms, Datacoms, Wireless, IoT
As RF environments become increasingly crowded, RF filters play a critical role in maintaining signal quality, improving system performance, and ensuring reliable operation.

Read more...

---

GigaDevice expands optical communication portfolio
NuVision Electronics Telecoms, Datacoms, Wireless, IoT
GigaDevice has introduced the new GD32E512 and GD32E252 series MCUs specifically designed for optical module applications.

Read more...

---

Industrial connectivity without compromise
Telecoms, Datacoms, Wireless, IoT
The IR315 combines 4G LTE, Wi-Fi, Ethernet, and VPN technologies into a rugged, industrial-grade platform that enables seamless connectivity across a wide range of applications.

Read more...

---