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      shanghai huaxiang computer communication engineering co.,ltd (shx) not only is a high-tech enterprise within 25 years operating, involved producing, devising and marketing rf & microwave components, but also passed quality management system certification, displayed as iso & gjb9001b-2009.                               

      the main product include coaxial attenuator, coaxial termination/load, directional coupler, power divider, coaxial detector, microwave power meter, coaxial switcher, test cable, adapter and microwave test subsystem. thanks to forward-looking insight and comprehensive layout, shx owns lots of patents and 龙8手机app copyrights of software, international advanced techniques and facilities; more than 6000㎡ workplace and above 100 employees included technicians and sophisticated workers, enough capabilities to efficiently satisfying demands of customers and study. as nominated supplier, shx products are catered to more and more various industries and territories of demanders involved communication equipment manufacturer, medicine, radio and television, commission-free, institute and so on.

product function and feature(listed as follows):

     shx could supply various rf & microwave fixed attenuators, variable attenuators( involved step attenuators, dial typed attenuators, continuous typed attenuators); programmable attenuators. varieties of input and output joint could be afforded, specifically concerned with sma,bnc,n,4.3/10,din,tnc,2.4 mm,2.92mm,3.5mm,1.85 mm and the others. the toppest frequency band could reach 67ghz., average power: 1w-10kw.roduct function and feature(listed as follows):

coaxial fixed attenuator

     coaxial fixed attenuator can quantitatively absorb energy from transmission line, extending power measurement range, controlling power level, equipped low power meter, comprehensive test instrument or spectrum analyzer to accurately testing power or frequency spectrum from various rf & microwave transmitter.

     shx can afford coaxial fixed attenuators' average power: 1w - 10kw, frequency: dc-67ghz, referred to 1.85, 2.4, 2.92, 3.5, sma, n, 4.3/10, din, bnc,tnc and the other various types of connector; 50ω,75ω & gzl-dts serial isolate dc attenuator、anti-pulse & low intermodulation attenuator and other series. according to different power, there are different refrigerating ways optionally, such as natural cooling, oil cooling, water cooling and others.

      coaxial fixed attenuators in shx equips following traits: wider work frequency band, larger power span, lower vswr, higher attenuation value precision, anti-pulse, stronger anti-burnout capabilities. series of style, frequency, power, attenuation value and shapes of joint are listed as follows:

series	frequency	power	nominal attenuation（db）	connector type
1.85	dc-67g	2w	3~20	1.85
2.4	dc-50g	0.5-20w	1~40	2.4
2.92	dc-40g	0.5-50w	1~40	2.92
3.5	dc-26.5g	2-100w	1~50	3.5
sma	dc-26.5g	0.5-50w	1~60	sma
dts	dc-20g	0.5-3000w	1~60	n,tnc,din
gdts(oil cooling)	dc-2g	1kw-10kw	20~50	n ,din,5035
gzl-dts（isolate dc attenuator)	0.1-6g	2-100w	1~40	n
pdts（anti- pulse attenuator)	dc-6g	100-1000w	3~50	n,7/16
4.3/10	dc-6g	2-200w	1~40	4.3/10，4.1/9.5
tnc	dc-18g	2-200w	1~90	tnc
ts（75ω）	dc-3g	1/2/5w	1~40	f，n，sma，bnc
ndts	dc-50g	2-500w	1~50
lim-ts（low intermodulation)	dc-6g	2-300w	3~40	n，7/16，4.3/10

series	frequency	power	phase adjustment	connector type
tke	dc-8g	50w/100w	0-900°	n，sma
bps	dc-18g	10w/50w	0-360°	sma

     single directional couplers:  used to supervise and control transmitter's output power and output spectrum. directional couplers, serve as standard component, usually play an important part in reflectometers, rf network analyzers and other instruments. being used for monitoring output power of transmitter, output frequency spectrum,
 testing reflective power from transmitter to antenna side, detecting matching status from system of antenna, also to be used for power control by transmitter. they are also taken as a power meter together with detector or level indicator. couplers in shx feature compact small size, light, low loss of mainline transmission, excellent flatness in frequency response of coupling value, high power capacity, stable performance and high reliability etc.

      dual directional couplers: compared with single directional couplers, not only could they detect output power and spectrum online, but also they could monitor reflective power. dual directional couplers are one kind of rf four-port device and general standard device in microwave measurement, as well as crucial device of reflectometer and rf network analyzer, they are used to supervise and control transmitter's output power and spectrum, test reflected power from transmitter to antenna, monitor the matched condition of antenna feeder system. they are also taken as a power meter together with detector or level indicator. ddto serial products: input power: 50-1500w; peak frequency: 6ghz. they feature compact small size, light, low loss of machine transmission, excellent flatness in frequency response of coupling value, high power capacity, stable performance and high reliability etc.

series	frequency range	directionality	power	nominal coupling db	connector type
ddto	6g以下	≥6	50w-50kw	10/20/30/40/50/60	n，sma

      3db hybrids: can get the continuous sampling from transmission power along with the certain direction of transmission line and split the input signal into two equal signals with 90° difference in phase. mainly applied to multi-signal combination, raise utility of output signal, extensively used for coupling to the base station signal among indoor covering system. under the circumstance, better effect will be realized. 3db hybrids in shx reach superior performance index and high-level reliability.

serial	frequency range	isolation	power (w)	nominal phase shifter (degree)	connector type
shx9（narrow-band）	40g below	≥13	20w	90/180	sma，2.92
shx-zj（narrow-band）	4g below	≥20	50/100/200/500		n，7/16，sma

     coaxial switches:are extensively used in rf/microwave system, such as multiplexers, time-derived channel selection, pulse modulation, t-r switch, beam adjustment etc. coaxial switches could realize automatic control by voltage or computer programme. switching over in microwave circuit. products can be splited into spdt, sp3t, spnt, dpdt and others by means of quantity of input and output point. shx-801 series coaxial switches operating frequency: dc-26.5ghz, endowed with low insertion loss, low vswr and well performance of broadband. easier index of switches, decreasing loss of switch-on, increasing loss of switch-off, satisfying demands of system by use of frequency band and power. shx will continually keep innovating so as to satisfy customers' requirements, keeping pace with overseas market.

 

serial	frequency range	service voltage	type	function selection	connector type
shx801	dc-26.5g	12/24/28v	spdt/spnt/dpdt/2p3t/matrix	latching/termination/ttl driving/ip/wide temperature	sma

       microwave power module-power meter:  it can measure the incident power and reflected power of the transmitter.

       shx2000-a/b/c coming with usb interface is the pocket average cw signals power meter. it can be quickly set up and perform measurements without the use of power meter host. you only need to access the usb sensor with pc computer, with the help of software which control the sensors, the signals can be tested.

       shx2111-a/b/c & shx-2462a/b handy power meter are for field, main feature is light, large measuring range, easy operation. through the usb interface power supply.

       shx-2462 is based on digital signal new type of detector diode meter. it has auto calibration and zero function. it use lcd display to make power consume low to extend the work time. it can be used to be new and efficient solution for test the rf and microwave communication system: used for base station installation and maintenance, wireless components production test, wireless component development.

      shx540/shx540b vswr/power meter is a portable , multi-function, passing vswr and power measuring instruments, the measurable frequency range from 140mhz to 520mhz, 1.8mhz to 525mhz continuous power from 0-220w, the modulation wave peak power. the transmitter and antenna equipment access, real-time measurement, monitoring working conditions and the transmitter antenna input power, reflected power, vswr and other parameters.

      shx540/shx540b vswr/power meter is indispensable meter in communications and broadcasting system by virtue of it's high cost performance.

serial	frequency range	measurement way	input power max	connector type	dynamic range
shx2000/2111/200p（usb）	0.01-18g	cw/impulse wave average power	100mw	n，sma	*-30～20dbm
shx2462（with lcd）	0.01-18g	cw/impulse wave average power	100mw	n	*-30～20dbm

      coaxial detectors:principally are used for broadband microwave testing. products' traits: wider detection of broadband, well frequency response, low vswr.

 

serial	frequency range	power	frequency response (db)	max vswr	connector type
shx-803	0.01-40g	100mw	±3.5	2.2	2.92，sma，n

     power dividers:can divide one signal into two or n way equal or non-equal energy, in reverse, they are also used as combiners by combining multiple signal into one. they are mainly used in feed network in antenna array, mixer and balanced amplifier, finish the work of distributing, combining and measuring power, isolating signal sources and measuring swept reflected coefficient etc.

 

serial	frequency range	average power	impedance	dividing way	connector type
shx-gf	dc-18g	1/2/5/10/50w	50ω/75ω	1分2/3/4/5	n,sma,bnc
shx	0.03-6g	50/80/200w	50ω	1分2/4/8	n,sma
shxhv(4kv,400ns)	dc-9g	10/20w	50ω	1分2,1分8	n
shx202(203/204/206/208/216)	0.3-45g	15/20w	50ω	1分2/3/4/6/8/16	2.92,sma
shx-0.8/3	0.8-3g	20w	50ω	1分2/3/4/6/8/16	sma,n

 

 

 

 

 

 

 

 

 

 

 

circulators: control energy transfer follow one certain loop. circulators are irreversible component equipped with couples of ports.

isolators: make energy from input to output.

serial	frequency range	broadband	isolation	power	connector type
shx-th	0.3-18g	30-6000m	≥14db	10-150w	sma,n
shx-tg	0.3-15g	30-5000m	≥18db	30-100w	sma,n

shx also supplies suite of service about microwave test accessories & microwave test subsystem.

test accessories: dc-blocks, limiters, 50ω/75ω impedance converters, rf connectors, free- through termination and test cables.

       microwave test subsystem: not only inspect signal continuity between cellphone switch over signal zone, but also mainly act on simulating signal attenuation situation received from base station, extensively apply to wireless communication system test, frequency ranges for gsm,wcdma,lte,wlan, could reach to 18ghz. products' category classified with four way/ eight way/ multi-way switch matrix aging test equipment, n input n output programmable test system, attenuator matrix programmable test system, switch matrix, phase matrix & calibration kit, shield box and intelligent control phase & return adjustable loss system.