Left Border Content - RF Cafe
Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
Sub-Header - RF Cafe
Hittite Intros GaAs MMIC I/Q Upconverters & Downconverters
-- Ideal for 38 GHz & 42 GHz Microwave Radio Applications
MA, 06/07/2013 – Hittite Microwave Corporation, the world class supplier of complete MMIC based
solutions for communication & military markets, has launched several new, highly integrated
I/Q upconverter and downconverter products which cover the licensed 38 GHz and 42 GHz
bands in microwave radios for cellular backhaul radio links.
the HMC6146BLC5A are
GaAs MMIC I/Q variable gain upconverters which form a competitive and cost-effective microwave
radio transmitter solution which has been designed to meet or exceed all of the performance
criteria required for modern high capacity QAM microwave radios. The
operates from 37 to 40 GHz and provides a small signal conversion gain of 10 dB with
17 dBc of sideband rejection, and 13 dB of gain control. The
operates from 40 to 44 GHz and provides a small signal conversion gain of 12 dB with 25 dBc
of sideband rejection, and 17 dB of gain control. The
the HMC6146BLC5A both
utilize a RF variable gain amplifier preceded by an I/Q mixer where the LO is driven by a x2
multiplier. IF1 and IF2 mixer inputs are provided and an external 90 degree hybrid is needed
to select the required sideband. Both I/Q upconverters feature high output IP3 of +27 dBm,
2LO/RF isolation of 15 dB, and also meet the requirements of VSAT/Satcom transmitter terminals
covering the EHF frequency band.
is a GaAs MMIC I/Q downconverter which is ideal for replacing the front end receiver section
of 38 GHz and 42 GHz microwave radio designs. The
provides a small signal conversion gain of 13 dB with 25 dBc of image rejection and utilizes
a low noise amplifier to drive the I/Q mixer where the LO is driven by a x2 multiplier. IF1
and IF2 mixer inputs are provided and an external 90 degree hybrid is needed to select the required
I/Q downconverter also features a very low noise figure of less than 3.5 dB and typical input
IP3 of 2 dBm.
The I/Q mixer design topology used for the
, HMC6146BLC5A and
is highly advantageous because it reduces the need for filtering of the unwanted sidebands.
All three devices provide a much smaller alternative to hybrid-style single sideband converter
assemblies, and they eliminate the need for wire bonding by allowing the use of surface mount
manufacturing techniques. The
, HMC6146BLC5A and
the HMC6147ALC5A are
housed in compact, 5 x 5 mm RoHS compliant SMT packages. Samples and evaluation PC boards for
all SMT packaged products are available from stock and can be ordered via the company's e-commerce
site or via direct purchase order. Released data sheets are available on-line at www.hittite.com.
Hittite Microwave Corporation is an innovative designer and manufacturer
of high performance integrated circuits, or ICs, modules, subsystems and instrumentation for
technically demanding digital, RF, microwave and millimeterwave applications covering DC to
110 GHz. The Company offers over 1075 standard products across 36 product lines in addition
to a wide range of custom products which apply analog, digital and mixed-signal semiconductor
technologies, which are used in a wide variety of wireless / wired communication and sensor
applications for Automotive, Broadband, Cellular Infrastructure, Fiber Optics & Networking,
Microwave & Millimeterwave Communications, Military, Test & Measurement, and Space markets.
The Company is headquartered in Chelmsford, Massachusetts.
Marketing Communications Manager
Hittite Microwave Corporation
2 Elizabeth Dr.
978-250-3343, ext. 1117
Footer - RF Cafe
Right Border Content - RF Cafe