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QEA Series Broadband Detectors
(PDF available)

 

Characteristics
  • Full Waveguide Bandwidths
  • High Sensitivity

  • No Bias Required

  • Positive or Negative Output

Product Description

QuinStar Technology's QEA series broadband detectors cover the frequency range of 18 to 110 GHz in seven waveguide bands. These detectors provide an output voltage which is directly proportional to the power level of an RF signal without needing any external DC bias. They are useful for power detection, monitoring, built-in-test and frequency measurement.

The detectors can also be used in millimeter-wave test systems with a wide variety of high-impedance oscilloscopes and scalar analyzers. They can be used for both CW and pulsed power measurements. They are constructed with a very rugged, reliable split-block mechanical design and are available with either positive or negative output voltage polarity.

Specifications
FREQUENCY BAND K Ka Q U V E W
Frequency Range (GHz) 18-26.5 26.5-40 33-50 40-60 50-75 60-90 75-110
Waveguide Size WR-42 WR-28 WR-22 WR-19 WR-15 WR-12 WR-10
Sensitivity (mV/mW min) 1,2 1000 1000 1000 800 800 500 500
Flatness (dB max)3 ±1.5 ±1.5 ±1.5 ±1.5 ±1.5 ±1.5 ±2.0
Input Power (mW max) 100 100 100 100 100 100 100

1 The sensitivity of QEA broadband detectors can be optimized over a narrow bandwidth if desired.
2 Measured at - 10dBm input power level, into a 100 K ohm load.
3 Better flatness can be achieved over reduced bandwidth
Other waveguide bands available for higher frequency operation beyond 110 GHz. Please consult factory.


Outline Drawings
FREQUENCY
BAND
WAVEGUIDE
SIZE
FLANGE
PATTERN
VIDEO
OUTPUT
OUTLINE DIMENSIONS, inches/mm
A B C
K WR-42 UG-595/U SMA Jack 0.88/22.4 0.88/22.4 1.5/38.1
Ka WR-28 UG-599/U SMA Jack 0.75/19.1 0.75/19.1 1.5/38.1
Q WR-22 UG-383/U SMA Jack 1.13/28.7 1.13/28.7 1.25/31.75
U WR-19 UG-383/U SMA Jack 1.13/28.7 1.13/28.7 1.25/31.75
V WR-15 UG-385/U SMA Jack 0.75/19.1 0.75/19.1 0.75/19.1
E WR-12 UG-387/U SMA Jack 0.75/19.1 0.75/19.1 0.75/19.1
W WR-10 UG-387/U SMA Jack 0.75/19.1 0.75/19.1 0.75/19.1

Ordering Information

Model Number: QEA - AB CD E F  (click here for automatic web quote request form)

AB = Center frequency rounded to nearest GHz
(1A = 100-109 GHz, FB = fullband)
CD =

Bandwidth rounded to nearest GHz
(FB = fullband)

E = Waveguide band designator:
K = K-band
A = Ka-band
Q = Q-band
U = U-band
V = V-band
E = E-band
W = W-band
F = Polarity (Detector output voltage with respect to case):
P = Positive
N = Negative

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