09.07.2019 Aufrufe

7-2019

Fachzeitschrift für Hochfrequenz- und Mikrowellentechnik

Fachzeitschrift für Hochfrequenz- und Mikrowellentechnik

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RF & Wireless<br />

gle radome enclosure with one<br />

mounting point. They are dualband,<br />

enabling 2x2 MIMO in<br />

each band or 4x4 MIMO across<br />

bands with carrier aggregation.<br />

These antennas deliver highgain<br />

ranging from 10...12 dBi<br />

and operate in a range of dual<br />

frequencies from 2300 to 2700<br />

MHz + 3500 to 3800 MHz,<br />

2300...2700 MHz + 5150...5850<br />

MHz, and 3500...3800 MHz +<br />

5150...5850 MHz. All models<br />

utilize four N-type connectors.<br />

By using low and high-band<br />

radios within a single antenna,<br />

this line provides different levels<br />

of coverage or service to the end<br />

user. Elevation beamwidth for<br />

this product line ranges from 7<br />

degrees to 10 degrees. The central<br />

function of these antennas is<br />

as a base station antenna for 2,<br />

3 and 5 GHz AP radios.<br />

■ KP Performance Antennas<br />

www.kpperformance.com<br />

900 MHz 120-Degree<br />

Sector Antenna<br />

KP Performance Antennas has<br />

launched a new 900 MHz,<br />

120-degree sector antenna that<br />

is ideal as a base station or<br />

access point antenna for wireless<br />

internet service provider<br />

(WISP) applications. KP’s<br />

new 120-degree sector antenna<br />

covers frequencies from 902<br />

to 928 MHz with high-gain of<br />

12.5 dBi and ±45-degree dual<br />

slant polarization. This antenna<br />

delivers complete coverage with<br />

two or three sector antennas<br />

combined. Operating in the 900<br />

MHz frequency band with dual<br />

slant polarization, this sector<br />

antenna is able to deliver reliable<br />

coverage while penetrating<br />

dense foliage. Elevation beamwidth<br />

is 13.5-degrees and frontto-back<br />

ratio is 15 dB.<br />

■ KP Performance Antennas<br />

www.kpperformance.com<br />

Power Amplifier<br />

Covers 10 kHz to<br />

250 MHz<br />

The Model 500A250D is a solidstate,<br />

self-contained, air-cooled,<br />

broadband amplifier designed for<br />

applications where instantaneous<br />

bandwidth, high gain and linearity<br />

are required. Available in<br />

a stylish, contemporary cabinet<br />

for benchtop use or with cabinet<br />

removed for rack mounting.<br />

The Model 500A250D, when<br />

used with a sweep generator,<br />

will provide a minimum of 500<br />

watts of RF power from .01-<br />

250 MHz. Included is a front<br />

panel gain control which permits<br />

the operator to conveniently<br />

set the desired output level. The<br />

500A250D is protected from RF<br />

input overdrive by an RF input<br />

leveling circuit which controls<br />

the RF input level to the RF<br />

amplifier first stage when the RF<br />

input level is increased above<br />

0dBm. The RF amplifier stages<br />

are protected from overtemperature<br />

by removing the DC voltage<br />

to them if an over-temperature<br />

condition occurs due to<br />

cooling blockage or fan failure.<br />

The Model 500A250D is equipped<br />

with a Digital Control Panel<br />

(DCP) which provides both local<br />

and remote control of the amplifier.<br />

The DCP uses a color LCD<br />

Microwave Solid State Amplifiers<br />

The Model 125S1G2z5 is a<br />

solid-state, self-contained,<br />

air-cooled, broadband amplifier<br />

designed for applications<br />

where instantaneous bandwidth,<br />

high gain and linearity<br />

are required. Available<br />

in a stylish, contemporary<br />

cabinet for benchtop use or<br />

with cabinet removed for rack<br />

mounting.<br />

The Model 125S1G2z5, when<br />

used with a sweep generator,<br />

will provide 125 watts of RF<br />

power. Included is a front<br />

panel gain control which<br />

permits the operator to conveniently<br />

set the desired output<br />

level. The 125S1G2z5 is<br />

protected from RF input overdrive<br />

by an RF input leveling<br />

circuit which controls the RF<br />

input level to the RF amplifier<br />

first stage when the RF input<br />

level is increased above 0dBm.<br />

The RF amplifier stages are<br />

protected from overtemperature<br />

by removing the DC voltage<br />

to them if an over-temperature<br />

condition occurs due<br />

to cooling blockage or fan failure.<br />

The Model 125S1G2z5 is<br />

equipped with a Digital Control<br />

Panel (DCP) which provides<br />

both local and remote<br />

control of the amplifier. The<br />

DCP uses a color LCD touch<br />

touch screen display to indicate<br />

the operate status and fault conditions<br />

if an over-temperature or<br />

power supply fault has occurred.<br />

The unit can be returned to<br />

operate when the condition has<br />

been cleared.<br />

All amplifier control functions<br />

and status indications are<br />

available remotely through the<br />

included Remotes Package.<br />

The Remotes Package includes<br />

screen display to indicate the<br />

operate status and fault conditions<br />

if an over-temperature or<br />

power supply fault has occurred.<br />

The unit can be returned<br />

to operate when the condition<br />

has been cleared.<br />

All amplifier control functions<br />

and status indications are<br />

available remotely through the<br />

included Remotes Package.<br />

The Remotes Package includes<br />

GPIB/IEEE-488 format,<br />

RS-232 hardwire and fiber<br />

optic, USB, and Ethernet.<br />

The bus interface connector<br />

is located on the back panel<br />

and positive control of local<br />

or remote operation is assured<br />

by a Local/Remote switch on<br />

the front panel of the amplifier.<br />

Also included with the<br />

Remotes Package is a safety<br />

interlock circuit for use with<br />

external safety switch interlocks.<br />

This circuit prevents<br />

the amplifier from going<br />

into operate mode unless the<br />

external connection is made.<br />

A jumper plug is provided for<br />

cases where this functionality<br />

is not needed.<br />

■ AR Deutschland GmbH<br />

www.ar-deutschland.com<br />

GPIB/IEEE-488 format, RS-232<br />

hardwire and fiber optic, USB,<br />

and Ethernet. The bus interface<br />

connector is located on the<br />

back panel and positive control<br />

of local or remote operation<br />

is assured by a Local/Remote<br />

switch on the front panel of the<br />

amplifier.<br />

■ AR Deutschland GmbH<br />

www.ar-deutschland.com<br />

hf-praxis 7/<strong>2019</strong> 61

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