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Microwave Acronyms - T

 

Updated December 31, 2009

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TAB

tape automated bonding

 

TACS

total access communication system

Analog cell phone standard.

TC

temperature coefficient or thermo-compression or temperature cycle

A type of wirebond employing heat.

TCC temperature coefficient of capacitance  
TCE temperature coefficient of resistance (CTE is also used) An approximate measure of how a solid expands or contracts over temperature.

TCR

temperature coefficient of resistivity

An approximate measure of how a resistor varies over temperature.

TCXO temperature-compensated crystal oscillator  

TDMA

time division multiple access

 

Tn

equivalent noise temperature

An alternate method of expressing noise figure, often used by scientists with thick glasses.

TE

transverse electric

A type of waveform associated with waveguides, requires only one closed conductor.

TEM

transverse electromagnetic

A type of waveform that requires two conductors, such as coax or stripline.

TFC thin-fim capacitor Capacitors that are formed using thin-film processes, often called MIM (metal-insulator-metal) caps.
TFR thin-film resistor Resistors that are formed using thin-film techniques.
TFN thin-film network A circuit that is processed on a substrate by depositing layers of metals (and sometimes insulators), using etching (and sometimes plating) operations to define features.
TFMSL thin-film microstrip line This type of transmission line is often used on silicon RF devices. Because silicon is not a great insulator, a dielectric layer such as BCB is deposited, then metal is patterned on top to define circuitry.
THz terahertz The region of electro-magnetic spectrum between millimeterwaves and light; 1012 Hertz.
TLA three letter acronym As in, FBI, EWR, WWW, DOS. Cheer up, there are only 17,576 possible TLAs!

TM

transverse magnetic

A type of waveform associated with waveguides, requires only one closed conductor.

TNC threaded Neill-Concelman A connector developed a long time ago that you might find on older equipment.
TOI third-order intercept  
TPMS tire pressure monitoring system A future government mandat to protect fat stupid people from SUV rollovers
TR, T/R transmit receive A transmit receive element, module, or system.
TRL through reflect line A type of network measurement calibration.

TS

thermo-sonic

A type of wirebond employing heat and sound waves.

TSA tapered slot antenna Also known as the Vivaldi antenna.
TSSOP thin shrink small outline package One of many package styles.
TTD true time delay A type of phase shifter employing switched lines that are multiple wavelengths long.

TTL

transistor-transistor logic

Old-school logic standard. 

TVAC thermal vacuum chamber Used for simulating the conditions of space flight on electronics.
TVRO television receive only  

TWT

traveling wave tube

A form of microwave power amplifier. Provides tens of watts to several thousand watts, often with poor noise characteristics. Named after a guy named Wave who was on the road a lot.

TX

transmit

An abbreviation sometimes used for transmit.

 

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