Acronyms and Abbreviations Used by the RF/Microwave Industry: Part II

Acronyms and Abbreviations Used by the RF/Microwave Industry: Part II

Part two of a two-part list of acronyms and abbreviations used in Microwave Journal articles over the past few years follows. Part one appeared in the February issue.

• GMDSS Global Maritime Distress Signal System
• GMSK Gaussian-filtered minimum-shift keying
• GPIB general-purpose interface bus
• GPR ground-penetrating radar
• GPRS General Packet Radio Service
• GPS Global Positioning System/Satellite
• GSM Global System for Mobile communications
• GSM-900 Group Speciale Mobile (European GSM)
• GSO geostationary orbit
• G/T receive antenna gain divided by noise temperature
• HARM high speed antiradiation missile
• HBT heterojunction bipolar transistor
• HDSL high bit-rate digital subscriber line
• HDTV high definition television
• HEMT high electron mobility transistor
• HEO high eliptical orbit (satellite)
• HFC hybrid fiber/coax
• HFET heterostructure field-effect transistor
• HGA high gain antenna
• HLR home location register
• HMIC hybrid microwave integrated circuit
• HPA high power amplifier
• HTS high temperature superconductor
• IBW instantaneous bandwidth
• IC integrated circuit
• IDECM integrated defense electronic countermeasures
• IDFT inverse discrete Fourier transform
• IDT interdigital transducer
• IEC International Electrotechnical Commission
• IF intermediate frequency
• IFF identification friend or foe
• IFM instantaneous frequency measurement
• IGBT insulated-gate bipolar transistor
• IGFET insulated-gate field-effect transistor
• IM intermodulation
• IMD intermodulation distortion
• IMDN Intelligent Mobile Data Network
• IMEI international mobile equipment identity
• IMP intermodulation products
• IMPATT impact avalanche and transit time
• IMR intermodulation rejection
• IMSI international mobile subscriber identity
• INMARSAT International Maritime Satellite (organization)
• INS inertial navigation system
• IPBO input power backoff
• IPC Institute for Interconnecting and Packaging Electronic Circuits
• IPS integrated power systems
• IQ in phase/quadrature
• IR infrared
• IRA impulse radiating antennas
• IS-95 North American cellular standard
• ISAR inverse synthetic-aperture radar
• ISDN integrated services digital network
• ISI intersymbol interference
• ISM industrial, scientific and medical (frequency bands)
• ISO International Standards Organization
• ITM-2000 International Mobile Telecommunication 2000
• ITS intelligent transportation systems
• ITU International Telecommunication Union
• IVHS Intelligent Vehicle Highway System
• JDC Japanese Digital Cellular
• JEDEC Joint Electronic Device Engineering Council
• JFET junction field-effect transistor
• JPEG Joint Picture Experts Group (compression standard)
• KGD known-good die
• LAN local area network
• LAO LaAlO3 (substrate)
• LC inductor/capacitor
• LCD liquid-crystal display
• LD laser diode
• LEC liquid encapsulated Czochralski (semi-insulating substrate)
• LEO low earth orbit (satellite)
• LHCP left-hand circular polarization
• LIDAR light direction and ranging
• LMS location and monitoring services
• LNA low noise amplifier
• LNB low noise block
• LNBF low noise block feed
• LO local oscillator
• LOS line of sight
• LPE lowpass equivalent
• LPF lowpass filter
• LPI low probability of intercept
• LRRM line-reflect-reflect-match
• LSG large-signal gain
• LTCC low temperature cofired ceramic
• LTP long-term predictor
• MAC medium access control
• MBA multibeam antenna
• MBE molecular beam epitaxy
• MCE manufacturing cycle efficiency
• MCF message communication function
• MCL microstrip constrained lens
• MCM multichip module
• MCPA multicarrier power amplifier
• MCPW microstrip coplanar waveguide
• MCT metal-oxide semiconductor-controlled thyristor
• MDS multipoint distribution system
• MEADS medium extended air defense system
• MESFET metal semiconductor field-effect transistor
• MEO medium earth orbit (satellite)
• MIM metal-insulator-metal (capacitor)
• MIMIC millimeter-wave and microwave integrated circuit (program)
• MIR microwave impulse radar
• MLC main lobe clutter
• MLCM multilevel coded modulation
• MLDD matched-line directional divider
• MMC metal-matrix composite
• MMI man-machine interface
• MMIC monolithic microwave integrated circuit
• MMW millimeter wave
• MOCVD metal-organic chemical vapor deposition
• MODEM modulator/demodulator
• MoM method of moments
• MOS metal-oxide semiconductor
• MPEG Motion Picture Experts Group
• MPIE mixed potential integral equation
• MPM microwave power module
• MQW multiquantum well
• MQW-FP multiquantum well Fabry-Perot optical transmitter
• MS mobile station
• MSBVW magnetostatic backward volume waves
• MSC mobile switching center
• MSFVW magnetostatic forward volume waves
• MSI medium-scale integration
• MSMT micro surface-mount technology
• MSOP mini (micro) small outline package
• MSS mobile satellite system
• MSSW magnetostatic surface waves
• MSW magnetostatic wave
• MTA microwave transition analyzer
• MTBF mean time between failures
• MTD moving-target detection
• MTI moving-target indicator
• MTTF mean time to failure
• MU minimum stability factor
• MUNDI multiplexed network for distributed and interactive services (UK)
• MUX multiplexer
• MVDS multipoint video distribution system
• NADC North American Dual-mode (or Digital-mode) Cellular
• N-AMPS narrowband Advanced Mobile Phone System/Service
• NEMA National Electrical Manufacturers Association
• NGA noise gain analyzer
• NGSO nongeostationary orbit
• NIC network interface card (WLAN)
• NIST National Institute of Standards and Technology
• NMC network management center
• NMR nuclear magnetic resonance
• NODS near obstacle detection system
• NPR noise power ratio
• NPRM notice of proposed rule making
• NQR nuclear quadruple resonance
• NRZ nonreturn to zero
• NSSN National Standards System Network
• NTSC National Television Systems Committee
• OAD optical admittance diagram
• OBU onboard unit
• OCDMA orthogonal code-division multiple access
• OCPAR optically controlled phased-array radar
• OCXO oven-controlled crystal oscillator
• OEIC optoelectronic integrated circuit
• OEM original equipment manufacturer
• OFDM orthogonal frequency-division multiplex
• OFHC oxygen-free high conductivity (copper)
• OFS operational fixed service
• OMC operations and maintenance center
• OOK on-off keying
• OPBO output power backoff
• OPIP output power intercept point
• OPLL optical phase-locked loop
• OQPSK offset-quadrature phase-shift keying
• OSI open systems interconnection
• OTDR optical time-domain reflectometer
• OTH over the horizon
• PA power amplifier
• PAA phased-array antenna
• PACS personal access communications system (US version of PHS)
• pACT personal air communications technology
• PAE power-added efficiency
• PAL programmable array logic
• PAL phase-alternation line (video)
• PAM pulse amplitude modulation
• PAN public-access network
• PBX personal branch exchange
• PCI peripheral component interconnect
• PCIA Personal Communication Industry Association
• PCM pulse code modulation
• PCMCIA Personal Computer Memory Card International Association
• PCN personal communications network
• PCS personal communications service
• PCU power conditioning unit
• PD pulsed Doppler
• PDC personal digital cellular
• PDF probability distribution function
• PDH plesiochronous-digital hierarchy
• PDIP plastic dual-in-line package
• PEBB power electronic building block
• PECVD plasma-enhanced chemical vapor deposition
• PEEC partial element equivalent circuit
• PEP peak envelope power
• PEP primary entry point
• PHEMT psuedomorphic high electron mobility transistor
• PHP Personal Handyphone, JPHP (Japan, 1895.15 to 1905.15 MHz)
• PHS personal handyphone system (Japan)
• PHY physical layer (WLAN)
• PIC photonic integrated circuit
• PIM passive intermodulation
• PIN positive-intrinsic-negative (diode junction)
• PLL phase-locked loop
• PLMN private land mobile network
• PM phase modulation
• PMD polarization-mode dispersion
• PMOS positive metal-oxide semiconductor
• PMR private mobile radio
• PN pseudorandom noise
• PNF planar near field (range)
• PON passive optical network
• POCSAG Post Office Code Standardization Advisory Group (paging)
• POFS private operational fixed service
• POTS plain-old telephone service
• PPM periodic permanent magnet (focused)
• PPM pulse position modulation
• PQFP plastic quad flat pack
• PRBS pseudorandom binary/bit sequence
• PRF pulse repetition frequency
• PROM programmable read-only memory
• PSA polysilicoelf-aligned (bipolar transistor)
• PSD power spectral density
• PSK phase-shift keying
• PSTN public switched telephone network
• PTFE polytetrafluoroethylene
• PTO public telecommunications operator
• PTT post, telephone and telegraph (Europe)
• P1dB 1 dB compression point
• QAM quadrature (quaternary) amplitude modulation
• QIFM quadrature intermediate frequency mixer
• QPSK quadrature phase-shift keying
• QRNS quadratic residue number system
• QWIP quantum well infrared photodetector
• QWR quarter-wave rule
• RACH random-access channel
• RADAR radio detection and ranging
• RAM radar-absorbing material
• RAM random-access memory
• RAP radar-absorbing paint
• RAS radio astronomy synthesis
• RBER residual bit error ratio
• RBW resolution bandwidth
• RCS radar cross section
• RDS radio data system
• RELP residually excited linear predictive coder
• RF radio frequency
• RFID radio frequency identification
• RFMU radio frequency monitoring unit
• RFS radio frequency simulator
• RHCP right-hand circular polarization
• RIN relative intensity noise
• RISC reduced instruction set computing
• RLL radio local loop
• RMS root mean square
• ROTHR relocatable over-the-horizon radar
• RRC raised-root cosine
• RRE radar range equation
• RSSI received signal strength indicator
• RSU roadside unit (auto toll collecting)
• RwoH reliability without hermeticity
• RWR radar-warning receiver
• RX receiver/receive
• SA selective availability (GPS error introduction/correction)
• SAR search and rescue
• SAR synthetic aperture radar
• SAT supervisory audio tone
• SATCOM satellite communications (SATCOM Agency, Department of Defense)
• SAW surface acoustic wave
• SBN single-sideband phase noise
• SCFL source-coupled field-effect transistor logic
• SCPI industry-standard commands for programmable instruments
• SCSI small computer standard/system interface
• SDH synchronous digital hierarchy (European telecommunication)
• SDLA successive detection log amplifier
• SDMA spatial-division multiple access
• SEAD suppression of enemy air defenses
• SEM scanning electron microscope
• SES severely errored seconds
• SFDR spurious-free dynamic range
• SHF super high frequency
• SIGINT signal intelligence
• SIM subscriber identity module
• SINAD signal-to-noise and distortion (ratio)
• SIR stepped impedance resonator
• SLM spatial light modulator
• SMI sample matrix inversion
• SMP subminiature push-on (connector)
• SMP surface-mount package
• SMR specialized mobile radio
• SMS short message service
• SMT surface-mount technology
• SNA scalar network analyzer
• SNR signal-to-noise ratio
• SOIC small-outline integrated circuit
• SOLT short-open-load-thru (calibration)
• SONET synchronous optical network (US telecommunications)
• SOT small-outline transistor
• SP3 third-order suppression
• SPC statistical process control
• SPRE satellite position reporting equipment
• SSB single sideband
• SSBW surface-skimming bulk wave
• SSD simultaneous signal detection
• SSG small-signal gain
• SSI small-scale integration
• SSOP shrink small outline package
• SSOT shrink small outline transistor
• SSPA solid-state power amplifier
• SSR surface search radar
• STALO stable local oscillator
• STM synchronous transport module (1 STM = 155 Mbps)
• STOVL short takeoff, vertical landing (aircraft)
• STW surface transverse wave
• SWR standing wave ratio
• TACAN tactical air navigation
• TACS Total Access Communication System
• TAG technical advisory group
• TARD towed active radar device
• TBCCO thallium barium calcium copper oxide
• TCH traffic channel
• TCM trellis-coded modulation
• TCR temperature coefficient of resistance
• TCXO temperature-compensated crystal oscillator
• TDD time-division duplex
• TDD time-domain duplex
• TDMA time-division multiple access
• TDWR terminal Doppler weather radar
• TE transverse electric
• TEC thermal electric cooler
• TEM transverse electromagnetic mode
• TETRA trans-European trunked radio
• TFT thin-film transistor
• TFTS terrestrial flight telephone system
• TM transverse magnetic
• TMN telecommunication management network
• TOI third-order intercept (point)
• T/R transmit/receive
• TRAC Technical Regulations Application Committee (of ETSI)
• TRAM transimpedance amplifier
• TRP Technology Reinvestment Program (NIST)
• TRL thru-reflect-line (calibration)
• TS timeslot
• TSOP thin small outline package
• TSS tangential signal sensitivity
• TTD true time delay
• TTL transistor-transistor logic
• TWTA traveling-wave-tube amplifier
• TX transmit/transmitter
• UAV unmanned aerial vehicles
• UFMOP unintentional frequency modulation on pulse
• UIM uniform impedance resonator
• UM unintentional modulation
• UMTS Universal Mobile Telecom System (Europe)
• UPT universal personal telecommunications
• USAT ultra-small aperture terminals
• UWB ultra-wideband
• VANA vector automatic network analyzer
• VBW video bandwidth
• VCO voltage-controlled oscillator
• VDU video display unit
• VISA virtual instrument software architecture
• VLR visitor location register
• VLSI very large-scale integration
• VMEbus versa module Eurocard computer bus
• VNA vector network analyzer
• VSAT very small aperture terminal
• VSB vestigial sideband modulation
• VSWR voltage standing-wave ratio
• VXIbus VMEbus extension for instrumentation
• WAAS wide area augmentation system (GPS ground based)
• WADSP wideband acquisition/digital signal processing
• WAN wide area network
• WDM wavelength division multiplexing
• WDDM wavelength division demultiplexing
• WLAN wireless local area network
• WLL wireless local loop
• XFCB extra-fast complementary bipolar
• XPIC cross-polar interference canceller
• XPOL cross-polarization level
• YBCO yttrium barium copper oxide
• YIG yttrium iron garnet
• YTO YIG-tuned oscillator