Eastern Wireless TeleComm, Inc. - News Feed

S-Band Delay Equalized Bandpass Filter

EWT — 2011-05-31T00:00:00.0000000-04:00

S-Band Delay Equalized Bandpass Filter

EWT-90-0074 is a new S-Band bandpass filter with integrated group delay equalizer having nominal 3dB bandwidth of 400 MHz. This unit has approximately 1nS group delay variation over 80% of the 3dB passband and 3.2nS group delay variation over the full 3dB passband. Phase linearity over Fo +/- 185 MHz is less than +/- 10 deg. Attenuation is 30dBc at Fo +/- 360 MHz. The overall size is 3.00” x 1.00” x .5” with SMA connectors.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized filter needs.

Insertion Loss Equalizer with 5dB Slope

EWT — 2011-05-31T00:00:00.0000000-04:00

Insertion Loss Equalizer with 5dB Slope

Insertion Loss Equalizer model EWT-90-0071 has 5dB negative insertion loss slope over the passband of 1110 – 1450 MHz. The insertion loss is approximately .5dB at 1450 MHz with 5dB relative loss at 1110 MHz and 3.4dB mid-band loss.

The insertion loss slope is 1.3dB +/- .75dB per 100 MHz. The return loss over the passband is 15dB minimum.

The overall size is 1.25” x .50” x .40” with SMA Male input and SMA Female output connectors.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized filter needs.

High Power Narrow Band UHF Filter

EWT — 2011-02-13T00:00:00.0000000-05:00

Cavity Filters Product - High Power Narrow Band UHF Filter

EWT-11-0652 is a narrow bandwidth cavity filter with a passband from 460-465 MHz. Insertion loss over the pass band is <1.5 dB and has >55 dB rejection at 455 MHz. VSWR over the pass band is 1.5:1.

This unit is designed to withstand 100 Watts CW. Supplied as shown with SMA Female connectors, however other connector options are available.

The overall size is 5.15"L x 4.00"W x 4.00"H

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Integrated Assemblies Product - 1920 - 1980 MHz Low Noise Amplifier

EWT — 2011-02-10T08:00:00.0000000-05:00

1920 - 1980 MHz Low Noise Amplifier

The EWT-90-0058 Low Noise Amplifier covers the frequency range of 1920 – 1980 MHz and features a small Signal Gain of 31 dB min, 1.35 dB Noise Figure, and +13dB output 1dB compression point. This design can be optimized for operation over sub-bands ranging from 200 MHz to 3000 MHz. This unit also has an available option for two outputs. Input voltage range is +12 to +15 VDC @ 100mA.

The overall size is 2.55” x 1.62” x .53”. Shown with SMA female connectors.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Integrated Assemblies Product - High Linearity Low Noise Amplifier

EWT — 2011-02-10T07:58:00.0000000-05:00

High Linearity Low Noise Amplifier

Model EWT-71-0002 is a Low Noise Amplifier covering the L-Band (2200 to 2400 MHz). Featuring a small signal gain of 10 dB min, 1.0 dB Noise Figure, and +22 dBm Output 1 dB Compression Point, this design can be optimized for operation over sub-bands ranging from 200 to 3000 MHz.

This unit also has optional integrated Bias “T” to apply Bias voltage through the output connector. Input voltage is +12 VDC @ 100 mA typical.

The overall size is 1.70” x 1.25” x .40”. Shown with SMA female connectors.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Wireless Product - 3.5 GHz Duplexer

EWT — 2011-02-10T07:57:00.0000000-05:00

3.5 GHz Duplexer

Model EWT-21-0052A is a 3.5 GHz duplexer which has a 28 MHz passband for both Receive and Transmit channels. This duplexer is designed to operate over various center frequencies. The passband insertion loss is less than 1.25 dB over the operating temperature range of –45° to +80° C. The typical passband VSWR is 1.4:1 with Rx to Tx isolation >75 dB. This duplexer also exhibits >70 dB rejection up to 11 GHz. The physical size of this model is 3.2” x 2.25” x .88” and is rated to operate at 20 watts.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Cavity Filter Product - 15 GHz Drop-In Combline Bandpass Filters

EWT — 2011-02-10T07:53:00.0000000-05:00

15 GHz Drop-In Combline Bandpass Filters

EWT-21-0171 is a “Drop-In” Filter centered at 15000 MHz. This filter has an operating passband of 14500 to 15500 MHz with passband insertion loss of 2.0 dB Max. The filter exhibits greater than 60 dB of Rejection at Center Frequency +/- 1000 MHz and greater than 60 dB Ultimate Rejection to 40000 MHz. The physical size of this unit measures 1.40”L x .38”W x .20H

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Lumped Element Product - Miniature Surface Mount Drop In Filter

EWT — 2011-02-10T07:46:00.0000000-05:00

Miniature Surface Mount Drop In Filter

EWT offers a full line of Miniature Surface Mount “Drop-In” Filters. These filters are available in the frequency range of 2 GHz–30 GHz with percent Bandwidths of 2% - 50%.

Model EWT-21-0070 is designed for a center frequency of 4 GHz and exhibits pass band insertion loss of .8 db Max at center frequency +/- 200 MHz. With a typical VSWR of 1.4:1, this filter has an ultimate rejection of greater than 70 db to 18 GHz and measures 1.25”Lx.55”Wx.20”H.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Lumped Element Product - High Power Diplexer

EWT — 2011-02-10T07:41:00.0000000-05:00

High Power Diplexer

Model EWT-52-0069 High Power Diplexer is capable of handling 100W CW over the passbands 30-390 MHz and 410-500 MHz. This unit features 1.25dB maximum insertion loss over both passbands and a minimum of 30dB channel to channel isolation.

Overall size is 3.0” x 3.5” x .81”. Shown with TNC connectors. Other connector styles are available upon request.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Lumped Element Product - 56 MHz Surface Mount Bandpass Filter

EWT — 2011-02-10T07:35:00.0000000-05:00

56 MHz Surface Mount Bandpass Filter

Model EWT-51-1199 Surface Mount Bandpass Filter has a Center Frequency of 56 MHz. The .5dB passband covers 53 to 59 MHz with less than 2.5dB insertion loss at center frequency and attenuation greater than 20dB just 5 MHz from band edge.

This unit also exhibits superior group delay variation of 6nS across the central 3 MHz of the passband.

Overall size is 1.62” x .50” x .40” (excluding mounting tabs) with “Gull Wing” style .018” diameter RF Pins.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Lumped Element Product - 450 MHz Surface Mount Bandpass

EWT — 2011-02-10T07:33:00.0000000-05:00

450 MHz Surface Mount Bandpass

Model EWT-51-1699 is a Lumped Element Surface Mount Bandpass Filter with a frequency range of 350 - 550 MHz. Designed for a psuedo eliptic response, the insertion loss is minimized to less than 2.5dB at the band edges while attenuation is maximized to greater than 40dBc just 50 MHz from each band edge.

The stopband performance is 65dBc minimum from 685 to 3000 MHz

Overall size is 2.25” x .50” x .40” with .015” diameter surface mount RF Pins.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Lumped Element Product - 100 MHz Drop in Filter

EWT — 2011-02-10T07:26:00.0000000-05:00

100 MHz Drop in Filter

This Drop-In style bandpass filter is available in a wide range of octave bandwidths from 17.5 MHz to 530 MHz. The filter exhibits 1.5dB Max. insertion loss across the passband with 50dBc attenuation at 16% from band edge.

Overall size is 1.80” x .40” x .40” with .015” diameter RF Pins and 0-80 mounting holes on bottom of the unit.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Cavity Filter Product - High Power UHF Duplexer

EWT — 2011-02-10T07:17:00.0000000-05:00

High Power UHF Duplexer

The EWT-22-0003 was designed for a High Power Military Application. This duplexer operates in the frequency ranges of 243 to 270 MHz and 292 to 318 MHz. Passband insertion loss is less than .9 dB. The typical VSWR is 1.5:1 with cochannel isolation >60 dB. The duplexer is operational in the temperature range of –20°C to 70°C and is rated for power handling of 200 watts CW. Physical size is 12” x 7” x 1.5”. All connector style combinations are available.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Cavity Filter Product - High Power Filter

EWT — 2011-02-10T07:16:00.0000000-05:00

High Power Filter

Model EWT-90-0059 has a center frequency of 1325 MHz. With a 150 MHz bandwidth, the filter exhibits very low loss of <.6 dB over the passband and is designed to handle 300 W average power and 1.2 kW peak power.

This filter also has an integrated lowpass clean up filter. The lowpass filter allows the filter performance to remain spurious free from 2000 to 8500 MHz.

The approximate size is 9.0” x 2.0” x 1.3” and is shown with type N connectors. Other connector combinations are available.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Cavity Filter Product - AMPS Band Repeater Duplexers

EWT — 2011-02-10T07:14:00.0000000-05:00

AMPS Band Repeater Duplexers

With passbands from 824 to 849 MHz & 869 to 894 MHz, EWT’s Full Band AMPS Duplexer has Maximum passband loss of 1.3 dB. Passband VSWR is 1.3:1 and the Cochannel rejection is >75 dB. EWT offers this filter in the small package size of 5” x 2.7” x 1.5”.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Cavity Filter Product - 2500 - 13000 MHz Broadband Highpass Filter

EWT — 2011-02-10T07:13:00.0000000-05:00

2500 - 13000 MHz Broadband Highpass Filter

Model EWT-57-0010 Broadband Highpass Filter has a passband from 2500-13000 MHz. This unit features 1.5dB maximum insertion loss over the passband, 50dB minimum attenuation from DC-1650 MHz, and will handle up to 5W CW in band.

Overall size is 1.6” x .6” x .8” with SMA connectors.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Cavity Filter Product - 2.4 GHz Cavity Bandpass

EWT — 2011-02-10T07:10:00.0000000-05:00

2.4 GHz Cavity Bandpass

Model EWT-11-0311 is RoHS Compliant and has the following features:

Passband: 2400 to 2475 MHz min
Passband Insertion Loss: 1.5 dB max
Passband VSWR: 1.5:1
Rejection:
- >25 dB from DC to 2390 MHz
- >25 dB from 2485 MHz to 6000 MHz
Connectors: SMA Female

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Cavity Filter Product - AMPS Band Receive Filter

EWT — 2011-02-10T07:04:00.0000000-05:00

AMPS Band Receive Filter

Model EWT-11-0029 is an AMPS Receive Filter which exhibits <.9 dB insertion loss over a passband of 824 MHz to 849 MHz. The VSWR is 1.5:1. This filter rejects 869 MHz to 894 MHz by 80 dB and maintains >80 dB rejection to 3000 MHz. Physical size is 7.25” x 3.5” x 2.0”. All connector style combinations are available.

Contact Us Today or call us at 410.749.3800 to see how Eastern Wireless TeleComm, Inc. (EWT Filters) can help your meet your customized needs today.

Please view our selection of Wireless Products

EWT — 2011-02-10T06:51:00.0000000-05:00

Please make sure to visit our Wireless Products page. We add new products all the time and you can see past examples of our wireless products such as:

3.5 GHz Duplexer
5.8 GHz Surface Mount Duplexer
AMPS Band Duplexer
GSM Duplexer

With some of the following features EWT has the ability to customize your Wireless Products to meet your businesses specific needs.

Base Stations / Repeaters / Point-to-Point
High "Q", Low Loss
Cross Coupled / Pole Placed Topologies
Low Intermod Designs
High Power
Typical Operating Temperatures - 40 C to + 70 C
Filters, Duplexers & Multiplexers Available

Contact EWT Today!

Please view our selection of Lumped Element Filters

EWT — 2011-02-10T06:46:00.0000000-05:00

Please make sure to visit our Lumped Element Filters page. We add new products all the time and you can see past samples of our lumped element filter products such as:

100 MHz Drop in Filter
110 MHz Lowpass Filters
3.5 MHz Surface Mount Bandpass Filter
450 MHz Surface Mount Bandpass
56 MHz Surface Mount Bandpass
725 MHz Bandpass Filter T0-8 Package
High Power Diplexer
Highpass / Lowpass Duplexer
Lumped Element Surface Mount Series
Minature Duplexer with MMCX Connectors
Miniature Surface Mount Drop in Filter
Surface Mount Bandpass Filters

With some of the following features EWT has the ability to customize your Lumped Element Filters to meet your businesses specific needs.

Frequencies up to 10GHz
3 dB Bandwidths less than 0.5% to greater than 100%
Bandpass, Bandreject, Highpass, Lowpass
Miniature Size
Connectorized & Surface Mount
Typical Operating Temperatures - 55 C to 85 C
Filters, Duplexers & Multiplexers Available

Contact EWT Today!